CINXE.COM

<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-disabled skin-theme-clientpref-day vector-sticky-header-enabled vector-toc-available" lang="af" dir="ltr"> <head> <meta charset="UTF-8"> <title>Stereo-isomeer - Wikipedia</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-disabled skin-theme-clientpref-day vector-sticky-header-enabled vector-toc-available";var cookie=document.cookie.match(/(?:^|; )afwikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":[",\t."," \t,"],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy","wgMonthNames":["","Januarie","Februarie","Maart","April","Mei","Junie","Julie","Augustus","September","Oktober","November","Desember"],"wgRequestId":"e2db0f32-6811-4dc8-bf11-23b802751019","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"Stereo-isomeer","wgTitle":"Stereo-isomeer","wgCurRevisionId":2717301,"wgRevisionId":2717301,"wgArticleId":106584,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["Pages using ISBN magic links","Artikels met GND-identifiseerders","Normdata met 1 element","Biochemie","Kristallografie","Organiese chemie"],"wgPageViewLanguage":"af","wgPageContentLanguage":"af","wgPageContentModel":"wikitext","wgRelevantPageName":"Stereo-isomeer","wgRelevantArticleId":106584,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":true,"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"af","pageLanguageDir":"ltr","pageVariantFallbacks":"af"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":true,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":5000,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q235816","wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false}; RLSTATE={"ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","ext.cite.styles":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["ext.cite.ux-enhancements","mediawiki.page.media","site","mediawiki.page.ready","mediawiki.toc","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.charinsert","ext.gadget.switcher","ext.urlShortener.toolbar","ext.centralauth.centralautologin","mmv.bootstrap","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.cx.uls.quick.actions","wikibase.client.vector-2022","ext.checkUser.clientHints","ext.growthExperiments.SuggestedEditSession"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=af&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.init&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=af&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=af&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.19"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="Stereo-isomeer - Wikipedia"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//af.m.wikipedia.org/wiki/Stereo-isomeer"> <link rel="alternate" type="application/x-wiki" title="Wysig" href="/w/index.php?title=Stereo-isomeer&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikipedia (af)"> <link rel="EditURI" type="application/rsd+xml" href="//af.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://af.wikipedia.org/wiki/Stereo-isomeer"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.af"> <link rel="alternate" type="application/atom+xml" title="Wikipedia Atoomvoer" href="/w/index.php?title=Spesiaal:Onlangse_wysigings&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-Stereo-isomeer rootpage-Stereo-isomeer skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Gaan na inhoud</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Werf"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" title="Hoofkieslys" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Hoofkieslys" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Hoofkieslys</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Hoofkieslys</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">skuif na kantbalk</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">versteek</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navigasie </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage" class="mw-list-item"><a href="/wiki/Tuisblad" title="Besoek die Tuisblad [z]" accesskey="z"><span>Tuisblad</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wikipedia:Gebruikersportaal" title="Meer oor die projek, wat jy kan doen, nuttige skakels"><span>Gebruikersportaal</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Wikipedia:Geselshoekie" title="Agtergrondinligting oor aktuele sake"><span>Geselshoekie</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Spesiaal:Onlangse_wysigings" title="'n Lys van onlangse wysigings [r]" accesskey="r"><span>Onlangse wysigings</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Spesiaal:Lukraak" title="Laai 'n lukrake bladsye [x]" accesskey="x"><span>Lukrake bladsy</span></a></li><li id="n-help" class="mw-list-item"><a href="https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Contents" title="Vind meer uit oor iets"><span>Hulp</span></a></li><li id="n-Sandput" class="mw-list-item"><a href="/wiki/Wikipedia:Sandput"><span>Sandput</span></a></li><li id="n-specialpages" class="mw-list-item"><a href="/wiki/Spesiaal:Spesiale_bladsye"><span>Spesiale bladsye</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Tuisblad" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wikipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="" src="/static/images/mobile/copyright/wikipedia-tagline-af.svg" width="118" height="13" style="width: 7.375em; height: 0.8125em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Spesiaal:Soek" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Deursoek Wikipedia [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Soek</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Deursoek Wikipedia" aria-label="Deursoek Wikipedia" autocapitalize="sentences" title="Deursoek Wikipedia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Spesiaal:Soek"> </div> <button class="cdx-button cdx-search-input__end-button">Soek</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Persoonlike gereedskap"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Voorkoms"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Voorkoms" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Voorkoms</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=af.wikipedia.org&uselang=af" class=""><span>Skenkings</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Spesiaal:SkepRekening&returnto=Stereo-isomeer" title="U word aangemoedig om 'n gebruiker te skep en aan te meld, hoewel dit nie verpligtend is nie." class=""><span>Skep gebruiker</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Spesiaal:Teken_in&returnto=Stereo-isomeer" title="U word aangemoedig om aan te meld. Dit is egter nie verpligtend nie. [o]" accesskey="o" class=""><span>Meld aan</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Meer opsies" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Persoonlike gereedskap" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Persoonlike gereedskap</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="User menu" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=af.wikipedia.org&uselang=af"><span>Skenkings</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Spesiaal:SkepRekening&returnto=Stereo-isomeer" title="U word aangemoedig om 'n gebruiker te skep en aan te meld, hoewel dit nie verpligtend is nie."><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Skep gebruiker</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Spesiaal:Teken_in&returnto=Stereo-isomeer" title="U word aangemoedig om aan te meld. Dit is egter nie verpligtend nie. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Meld aan</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Bladsye vir uitgemelde redakteurs <a href="/wiki/Hulp:Inleiding" aria-label="Leer meer oor redigering"><span>leer meer</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Spesiaal:Mybydrae" title="A list of edits made from this IP address [y]" accesskey="y"><span>Bydraes</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Spesiaal:Mybespreking" title="Bespreking oor bydraes van hierdie IP-adres [n]" accesskey="n"><span>Bespreking</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Werf"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Inhoud" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Inhoud</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">skuif na kantbalk</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">versteek</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inleiding</div> </a> </li> <li id="toc-Cis-transisomerie" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Cis-transisomerie"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Cis-transisomerie</span> </div> </a> <ul id="toc-Cis-transisomerie-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Chirale_stereo-isomerie" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Chirale_stereo-isomerie"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Chirale stereo-isomerie</span> </div> </a> <button aria-controls="toc-Chirale_stereo-isomerie-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Wissel Chirale stereo-isomerie subafdeling</span> </button> <ul id="toc-Chirale_stereo-isomerie-sublist" class="vector-toc-list"> <li id="toc-Enantiomere" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Enantiomere"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Enantiomere</span> </div> </a> <ul id="toc-Enantiomere-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Die_ontdekking_van_chirale_stereo-isomere" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Die_ontdekking_van_chirale_stereo-isomere"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Die ontdekking van chirale stereo-isomere</span> </div> </a> <ul id="toc-Die_ontdekking_van_chirale_stereo-isomere-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Optiese_aktiwiteit" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Optiese_aktiwiteit"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>Optiese aktiwiteit</span> </div> </a> <ul id="toc-Optiese_aktiwiteit-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Verwysings" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Verwysings"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Verwysings</span> </div> </a> <ul id="toc-Verwysings-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Inhoud" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Inhoudsopgawe" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Wissel die inhoudsopgawe" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Wissel die inhoudsopgawe</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Stereo-isomeer</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Gaan na 'n artikel in 'n ander taal. Beskikbaar in 19 tale" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-19" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">19 tale</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Stereoizomer" title="Stereoizomer – Bosnies" lang="bs" hreflang="bs" data-title="Stereoizomer" data-language-autonym="Bosanski" data-language-local-name="Bosnies" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Estereois%C3%B2mer" title="Estereoisòmer – Katalaans" lang="ca" hreflang="ca" data-title="Estereoisòmer" data-language-autonym="Català" data-language-local-name="Katalaans" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Stereoisomer" title="Stereoisomer – Deens" lang="da" hreflang="da" data-title="Stereoisomer" data-language-autonym="Dansk" data-language-local-name="Deens" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-en badge-Q70894304 mw-list-item" title=""><a href="https://en.wikipedia.org/wiki/Stereoisomer" title="Stereoisomer – Engels" lang="en" hreflang="en" data-title="Stereoisomer" data-language-autonym="English" data-language-local-name="Engels" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Stereoisomeer" title="Stereoisomeer – Estnies" lang="et" hreflang="et" data-title="Stereoisomeer" data-language-autonym="Eesti" data-language-local-name="Estnies" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Estereoisomero" title="Estereoisomero – Baskies" lang="eu" hreflang="eu" data-title="Estereoisomero" data-language-autonym="Euskara" data-language-local-name="Baskies" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%A7%DB%8C%D8%B2%D9%88%D9%85%D8%B1_%D9%81%D8%B6%D8%A7%DB%8C%DB%8C" title="ایزومر فضایی – Persies" lang="fa" hreflang="fa" data-title="ایزومر فضایی" data-language-autonym="فارسی" data-language-local-name="Persies" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Stereoisomeria" title="Stereoisomeria – Fins" lang="fi" hreflang="fi" data-title="Stereoisomeria" data-language-autonym="Suomi" data-language-local-name="Fins" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%A4%E0%A5%8D%E0%A4%B0%E0%A4%BF%E0%A4%B5%E0%A4%BF%E0%A4%AE%E0%A4%B8%E0%A4%AE%E0%A4%BE%E0%A4%B5%E0%A4%AF%E0%A4%B5%E0%A4%A4%E0%A4%BE" title="त्रिविमसमावयवता – Hindi" lang="hi" hreflang="hi" data-title="त्रिविमसमावयवता" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Stereoizomer" title="Stereoizomer – Kroaties" lang="hr" hreflang="hr" data-title="Stereoizomer" data-language-autonym="Hrvatski" data-language-local-name="Kroaties" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8F%D5%A1%D6%80%D5%A1%D5%AE%D5%A1%D5%AF%D5%A1%D5%B6_%D5%AB%D5%A6%D5%B8%D5%B4%D5%A5%D6%80%D5%AB%D5%A1" title="Տարածական իզոմերիա – Armeens" lang="hy" hreflang="hy" data-title="Տարածական իզոմերիա" data-language-autonym="Հայերեն" data-language-local-name="Armeens" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Stereoisomero" title="Stereoisomero – Italiaans" lang="it" hreflang="it" data-title="Stereoisomero" data-language-autonym="Italiano" data-language-local-name="Italiaans" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Stereoisomer" title="Stereoisomer – Maleis" lang="ms" hreflang="ms" data-title="Stereoisomer" data-language-autonym="Bahasa Melayu" data-language-local-name="Maleis" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Stereo-isomeer" title="Stereo-isomeer – Nederlands" lang="nl" hreflang="nl" data-title="Stereo-isomeer" data-language-autonym="Nederlands" data-language-local-name="Nederlands" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Stereoizomery" title="Stereoizomery – Pools" lang="pl" hreflang="pl" data-title="Stereoizomery" data-language-autonym="Polski" data-language-local-name="Pools" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A1%D1%82%D0%B5%D1%80%D0%B5%D0%BE%D0%B8%D0%B7%D0%BE%D0%BC%D0%B5%D1%80%D1%8B" title="Стереоизомеры – Russies" lang="ru" hreflang="ru" data-title="Стереоизомеры" data-language-autonym="Русский" data-language-local-name="Russies" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A1%D1%82%D0%B5%D1%80%D0%B5%D0%BE%D0%B8%D0%B7%D0%BE%D0%BC%D0%B5%D1%80%D0%B8%D1%98%D0%B0" title="Стереоизомерија – Serwies" lang="sr" hreflang="sr" data-title="Стереоизомерија" data-language-autonym="Српски / srpski" data-language-local-name="Serwies" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A1%D1%82%D0%B5%D1%80%D0%B5%D0%BE%D1%96%D0%B7%D0%BE%D0%BC%D0%B5%D1%80%D0%B8" title="Стереоізомери – Oekraïens" lang="uk" hreflang="uk" data-title="Стереоізомери" data-language-autonym="Українська" data-language-local-name="Oekraïens" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh badge-Q70893996 mw-list-item" title=""><a href="https://zh.wikipedia.org/wiki/%E7%AB%8B%E4%BD%93%E5%BC%82%E6%9E%84%E4%BD%93" title="立体异构体 – Chinees" lang="zh" hreflang="zh" data-title="立体异构体" data-language-autonym="中文" data-language-local-name="Chinees" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q235816#sitelinks-wikipedia" title="Wysig skakels tussen tale" class="wbc-editpage">Wysig skakels</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Naamruimtes"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Stereo-isomeer" title="Bekyk die inhoudbladsy [c]" accesskey="c"><span>Bladsy</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Bespreking:Stereo-isomeer" rel="discussion" title="Bespreking oor die inhoudbladsy [t]" accesskey="t"><span>Bespreking</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Verander taalvariant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Afrikaans</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Weergawes"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Stereo-isomeer"><span>Lees</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Stereo-isomeer&veaction=edit" title="Redigeer hierdie bladsy [v]" accesskey="v"><span>Wysig</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Stereo-isomeer&action=edit" title="Wysig die bladsy se bonkode [e]" accesskey="e"><span>Wysig bron</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Stereo-isomeer&action=history" title="Ouer weergawes van hierdie bladsy [h]" accesskey="h"><span>Wys geskiedenis</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Gereedskap" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Gereedskap</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Gereedskap</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">skuif na kantbalk</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">versteek</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="More options" > <div class="vector-menu-heading"> Actions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Stereo-isomeer"><span>Lees</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Stereo-isomeer&veaction=edit" title="Redigeer hierdie bladsy [v]" accesskey="v"><span>Wysig</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Stereo-isomeer&action=edit" title="Wysig die bladsy se bonkode [e]" accesskey="e"><span>Wysig bron</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Stereo-isomeer&action=history"><span>Wys geskiedenis</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Algemeen </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Spesiaal:Skakels_hierheen/Stereo-isomeer" title="'n Lys bladsye wat hierheen skakel [j]" accesskey="j"><span>Skakels hierheen</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Spesiaal:OnlangseVeranderingsMetSkakels/Stereo-isomeer" rel="nofollow" title="Onlangse wysigings aan bladsye wat vanaf hierdie bladsy geskakel is [k]" accesskey="k"><span>Verwante veranderings</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Stereo-isomeer&oldid=2717301" title="'n Permanente skakel na hierdie weergawe van die bladsy"><span>Permanente skakel</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Stereo-isomeer&action=info" title="More information about this page"><span>Bladinligting</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Spesiaal:CiteThisPage&page=Stereo-isomeer&id=2717301&wpFormIdentifier=titleform" title="Inligting oor hoe u hierdie bladsy kan verwys"><span>Haal dié blad aan</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Spesiaal:UrlShortener&url=https%3A%2F%2Faf.wikipedia.org%2Fwiki%2FStereo-isomeer"><span>Kry verkorte URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Spesiaal:QrCode&url=https%3A%2F%2Faf.wikipedia.org%2Fwiki%2FStereo-isomeer"><span>Laai QR-kode af</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Druk/uitvoer </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Spesiaal:Boek&bookcmd=book_creator&referer=Stereo-isomeer"><span>Skep boek</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Spesiaal:DownloadAsPdf&page=Stereo-isomeer&action=show-download-screen"><span>Laai af as PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Stereo-isomeer&printable=yes" title="Drukbare weergawe van hierdie bladsy [p]" accesskey="p"><span>Drukbare weergawe</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> Ander projekte </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q235816" title="Skakel na gekonnekteerde databank item [g]" accesskey="g"><span>Wikidata-item</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Voorkoms"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Voorkoms</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">skuif na kantbalk</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">versteek</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">in Wikipedia, die vrye ensiklopedie</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="af" dir="ltr"><p><b>Stereo-isomere</b> is stowwe met dieselfde atomiese samestelling en met dieselfde bindings, wat egter in hul driedimensionale struktuur verskil. Daar is twee tipes: <i>cis</i>-<i>trans</i>-isomere en chirale stereo-isomere.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Cis-transisomerie">Cis-transisomerie</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stereo-isomeer&veaction=edit&section=1" title="Wysig afdeling: Cis-transisomerie" class="mw-editsection-visualeditor"><span>wysig</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Stereo-isomeer&action=edit&section=1" title="Edit section's source code: Cis-transisomerie"><span>wysig bron</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/L%C3%AAer:Cis-trans-2-Buten.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Cis-trans-2-Buten.svg/220px-Cis-trans-2-Buten.svg.png" decoding="async" width="220" height="85" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Cis-trans-2-Buten.svg/330px-Cis-trans-2-Buten.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Cis-trans-2-Buten.svg/440px-Cis-trans-2-Buten.svg.png 2x" data-file-width="356" data-file-height="138" /></a><figcaption>Cis- en trans-2-buteen</figcaption></figure> <p>'n Enkele C-C-binding is vrylik draaibaar, maar vir 'n dubbele binding is dit nie die geval nie. Dit wil sê dat die molekuul <span class="chemf" style="white-space:nowrap;">H<sub>3</sub>C</span>-HC=CH-<span class="chemf" style="white-space:nowrap;">CH<sub>3</sub></span> (2-buteen) in twee weergawes voorkom, wat (effens) verskillende eienskappe het. Hierdie tipe isomerie is belangrik in biologie en selfs vir gesondheid. Onversadigde vetsure kom in die natuur gewoonlik in die cis-vorm voor. Industriële bewerking soos hidrogenasie kan die een vorm egter omskakel na die ander een, en trans-vette is skadelik vir die gesondheid van die mens.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>Cis-transisomerie kom ook by metaalkomplekse voor en kan met <a href="/wiki/Nikolai_Semenovich_Kurnakov" class="mw-redirect" title="Nikolai Semenovich Kurnakov">Kurnakov</a> se reaksie onderskei word. </p> <div class="mw-heading mw-heading2"><h2 id="Chirale_stereo-isomerie">Chirale stereo-isomerie</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stereo-isomeer&veaction=edit&section=2" title="Wysig afdeling: Chirale stereo-isomerie" class="mw-editsection-visualeditor"><span>wysig</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Stereo-isomeer&action=edit&section=2" title="Edit section's source code: Chirale stereo-isomerie"><span>wysig bron</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Enantiomere">Enantiomere</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stereo-isomeer&veaction=edit&section=3" title="Wysig afdeling: Enantiomere" class="mw-editsection-visualeditor"><span>wysig</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Stereo-isomeer&action=edit&section=3" title="Edit section's source code: Enantiomere"><span>wysig bron</span></a><span class="mw-editsection-bracket">]</span></span></div> <dl><dd><i><div class="rellink relarticle mainarticle">Die hoofartikel vir hierdie afdeling is: <a href="/wiki/Enantiomeer" title="Enantiomeer">enantiomeer</a>.</div></i></dd></dl> <figure typeof="mw:File/Thumb"><a href="/wiki/L%C3%AAer:Chiral_molecule_example.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Chiral_molecule_example.svg/350px-Chiral_molecule_example.svg.png" decoding="async" width="350" height="155" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Chiral_molecule_example.svg/525px-Chiral_molecule_example.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Chiral_molecule_example.svg/700px-Chiral_molecule_example.svg.png 2x" data-file-width="2231" data-file-height="988" /></a><figcaption>Hierdie twee isomere molekules wat mekaar se spieëlbeeld is, is nie ekwivalent nie</figcaption></figure> <figure class="mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/L%C3%AAer:Non-chiral_molecure_example.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/Non-chiral_molecure_example.svg/150px-Non-chiral_molecure_example.svg.png" decoding="async" width="150" height="159" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/Non-chiral_molecure_example.svg/225px-Non-chiral_molecure_example.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/60/Non-chiral_molecure_example.svg/300px-Non-chiral_molecure_example.svg.png 2x" data-file-width="690" data-file-height="730" /></a><figcaption><span class="chemf" style="white-space:nowrap;">CF<sub>2</sub>ClBr</span> molekuul met inwendige spieëlvlak in die Cl-C-Br-vlak. Let hoe die twee fluoorverbindings weerskante van die (grys) spieëlvlak lê.</figcaption></figure> <p>'n Goeie voorbeeld van hierdie tipe isomerie uit die daaglikse lewe is 'n paar skoene. Hul het dieselfde samestelling uit dieselfde materiale, maar die een is die spieëlbeeld van die ander. Indien 'n molekuul nie self die <a href="/wiki/Simmetrie" title="Simmetrie">simmetrie</a> van 'n spieëlvlak besit nie, is daar ook 'n linker- en 'n regterweergawe van die molekuul. 'n Goeie voorbeeld is die molekuul <span class="chemf" style="white-space:nowrap;">CFClBrH</span>. Dit het 'n tetraëdriese struktuur maar die <u>vier</u> hoeke (die <a href="/wiki/Ligand" title="Ligand">ligande</a>) word beset deur vier verskillende atome. Die molekuul bestaan in twee stereo-isomere wat mekaar se spieëlbeelde is. Die verskynsel word <a href="/w/index.php?title=Chiraliteit&action=edit&redlink=1" class="new" title="Chiraliteit (bladsy bestaan nie)">chiraliteit</a> genoem en die twee isomere word <b>enantiomere</b> van mekaar genoem. </p><p>Dit is in teenstelling met 'n molekuul soos <span class="chemf" style="white-space:nowrap;">CF<sub>2</sub>ClBr</span> met slegs <u>drie</u> verskillende ligande. So 'n molekuul het wel 'n inwendige spieëlvlak en kom slegs in een weergawe voor. (Die spieëlvlak loop deur die Cl-C-Br atome en spieël die een fluooratoom af op die ander een.) </p> <div class="mw-heading mw-heading3"><h3 id="Die_ontdekking_van_chirale_stereo-isomere">Die ontdekking van chirale stereo-isomere</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stereo-isomeer&veaction=edit&section=4" title="Wysig afdeling: Die ontdekking van chirale stereo-isomere" class="mw-editsection-visualeditor"><span>wysig</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Stereo-isomeer&action=edit&section=4" title="Edit section's source code: Die ontdekking van chirale stereo-isomere"><span>wysig bron</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/L%C3%AAer:Pcrystals.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/95/Pcrystals.svg/220px-Pcrystals.svg.png" decoding="async" width="220" height="176" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/95/Pcrystals.svg/330px-Pcrystals.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/95/Pcrystals.svg/440px-Pcrystals.svg.png 2x" data-file-width="288" data-file-height="230" /></a><figcaption>Twee kristallyne vorme van tartraat, naamlik "D" (dextro) en "L" (levo)</figcaption></figure> <p>'n 50/50 mengsel van albei stereo-isomere word 'n rasemiese mengsel genoem. Indien die stereo-isomere van 'n rasemiese mengsel kristalliseer, pak hulle soms saam in aparte kristalle wat dan dikwels ook spieëlbeeldige vorme aanneem. Wynsteensuur is 'n beroemde voorbeeld daarvan wat eintlik tot die ontdekking van chiraliteit gelei het. </p> <div class="mw-heading mw-heading3"><h3 id="Optiese_aktiwiteit">Optiese aktiwiteit</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stereo-isomeer&veaction=edit&section=5" title="Wysig afdeling: Optiese aktiwiteit" class="mw-editsection-visualeditor"><span>wysig</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Stereo-isomeer&action=edit&section=5" title="Edit section's source code: Optiese aktiwiteit"><span>wysig bron</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Indien 'n bundel lig wat linêer gepolariseerd is deur 'n vloeistof soos water gestuur word, sal gewoonlik die polarisasierigting dieselfde blyf, maar indien dit byvoorbeeld 'n oplossing van <a href="/wiki/Suiker" title="Suiker">suiker</a> betref, sal die polarisasierigting draai. Die hoek waaroor die rigting verdraai raak, hang van die padlengte, die suikerkonsnsentrasie en die golflengte van die lig af. Hierdie effek word optiese aktiwiteit genoem en dit word in die suikernywerheid gebruik om suikerkonsentrasies te meet. Die meetinstrument word <a href="/wiki/Polarimeter" title="Polarimeter">polarimeter</a> genoem. </p> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/L%C3%AAer:Optical-rotation.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Optical-rotation.svg/220px-Optical-rotation.svg.png" decoding="async" width="220" height="164" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Optical-rotation.svg/330px-Optical-rotation.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Optical-rotation.svg/440px-Optical-rotation.svg.png 2x" data-file-width="335" data-file-height="249" /></a><figcaption>Meting van die optiese aktiwiteit</figcaption></figure> <p>In 1844 het 'n Duitse chemicus, Eilhard Mitscherlich, ontdek dat 'n <a href="/wiki/Rasemiese_mengsel" title="Rasemiese mengsel">rasemiese oplossing</a> van natriumammonium<a href="/w/index.php?title=Tartraat&action=edit&redlink=1" class="new" title="Tartraat (bladsy bestaan nie)">tartraat</a>, 'n sout van <a href="/w/index.php?title=Wynsteensuur&action=edit&redlink=1" class="new" title="Wynsteensuur (bladsy bestaan nie)">wynsteensuur</a>, nie die rigting van <a href="/w/index.php?title=Polarisasie&action=edit&redlink=1" class="new" title="Polarisasie (bladsy bestaan nie)">gepolariseerde</a> lig beïnvoed nie, maar dat 'n oplossing met net een stereo-isomeer dit wel doen. Optiese aktiwiteit word dus deur die teenwoordigheid van net een enantiomeer veroorsaak. Mitscherlich het nogtans geen verskille in samestelling of molêre massa gevind nie en het hy dit nie verstaan nie. Vier jaar later het <a href="/wiki/Louis_Pasteur" title="Louis Pasteur">Louis Pasteur</a> opnuut hierdie probleem nagevors. Hy het die voordeel van Jean-Bapiste Biot se werk gehad wat optiese aktiwiteit verder ondersoek het, en wat opgemerk het dat dit moeilik te verstane was hoe molekules met verskillende eienskappe geen verskillende struktuur of vorm sou hê nie. Pasteur het die kristalle van die rasemiese tartraat opnuut onder die <a href="/wiki/Mikroskoop" title="Mikroskoop">mikroskoop</a> gelê en gesien dat ook die kristalle 'n linkse en 'n regse vorm gehad het. Die kristalle is dihedraal, wat wil sê dat hulle 'n klein vlak aan een kant van hul bokant het. Pasteur het gesien dat die posisie van die klein vlakkie verskillend was. Pasteur het toe gepoog om kristalle uit te pik en só op moeisame wyse te skei. 'n Oplossing van die geskeide kristalle vertoon optiese aktiwiteit, en wel in teenoorgestelde rigtings vir die twee stereo-isomere.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Verwysings">Verwysings</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stereo-isomeer&veaction=edit&section=6" title="Wysig afdeling: Verwysings" class="mw-editsection-visualeditor"><span>wysig</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Stereo-isomeer&action=edit&section=6" title="Edit section's source code: Verwysings"><span>wysig bron</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist" style="list-style-type: decimal;"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"><span style="font-variant:small-caps; letter-spacing: 0.1em;">Frederick Bettelheim et al.</span> Introduction to General, Organic and Biochemistry, 2013, 2016, <a href="/wiki/Spesiaal:Boekbronne/9781285869759" class="internal mw-magiclink-isbn">ISBN 978-1-285-86975-9</a> Hoofstuk 15: Chirality</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><span style="font-variant:small-caps; letter-spacing: 0.1em;">Robert DeMaria, Laura A. Meyer</span> Dr. Bob's Trans Fat Survival Guide, 2005, <a href="/wiki/Spesiaal:Boekbronne/0972890726" class="internal mw-magiclink-isbn">ISBN 0-9728907-2-6</a></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><span style="font-variant:small-caps; letter-spacing: 0.1em;">Seymour Mauskopf</span> "A history of chirality" in Chiral Analysis, 2006, <a href="/wiki/Spesiaal:Boekbronne/9780444516695" class="internal mw-magiclink-isbn">ISBN 978-0-444-51669-5</a></span> </li> </ol></div> <div role="navigation" class="navbox authority-control" aria-labelledby="Normdata_frameless_&#124;text-top_&#124;10px_&#124;alt=Edit_this_at_Wikidata_&#124;link=https&#58;//www.wikidata.org/wiki/Q235816&#124;Edit_this_at_Wikidata" style="padding:3px"><table class="nowraplinks hlist navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th id="Normdata_frameless_&#124;text-top_&#124;10px_&#124;alt=Edit_this_at_Wikidata_&#124;link=https&#58;//www.wikidata.org/wiki/Q235816&#124;Edit_this_at_Wikidata" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hulp:Normdata" title="Hulp:Normdata">Normdata</a> <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q235816" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/15px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><span class="nowrap"><a href="/wiki/Gemeinsame_Normdatei" title="Gemeinsame Normdatei">GND</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://d-nb.info/gnd/4183120-2">4183120-2</a></span></span></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Ontsluit van "<a dir="ltr" href="https://af.wikipedia.org/w/index.php?title=Stereo-isomeer&oldid=2717301">https://af.wikipedia.org/w/index.php?title=Stereo-isomeer&oldid=2717301</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Spesiaal:Kategorie%C3%AB" title="Spesiaal:Kategorieë">Kategorieë</a>: <ul><li><a href="/wiki/Kategorie:Biochemie" title="Kategorie:Biochemie">Biochemie</a></li><li><a href="/wiki/Kategorie:Kristallografie" title="Kategorie:Kristallografie">Kristallografie</a></li><li><a href="/wiki/Kategorie:Organiese_chemie" title="Kategorie:Organiese chemie">Organiese chemie</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Versteekte kategorieë: <ul><li><a href="/wiki/Kategorie:Pages_using_ISBN_magic_links" title="Kategorie:Pages using ISBN magic links">Pages using ISBN magic links</a></li><li><a href="/wiki/Kategorie:Artikels_met_GND-identifiseerders" title="Kategorie:Artikels met GND-identifiseerders">Artikels met GND-identifiseerders</a></li><li><a href="/wiki/Kategorie:Normdata_met_1_element" title="Kategorie:Normdata met 1 element">Normdata met 1 element</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Die bladsy is laas op 21 November 2024 om 00:57 bygewerk.</li> <li id="footer-info-copyright">Die teks is beskikbaar onder die lisensie <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/">Creative Commons Erkenning-Insgelyks Deel</a>. Aanvullende voorwaardes kan moontlik ook van toepassing wees. Sien die <a class="external text" href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use">Algemene Voorwaardes</a> vir meer inligting.</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privaatheidsbeleid</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:Oor">Inligting oor Wikipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:Voorwaardes">Vrywaring</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Gedragskode</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Ontwikkelaars</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/af.wikipedia.org">Statistieke</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Koekieverklaring</a></li> <li id="footer-places-mobileview"><a href="//af.m.wikipedia.org/w/index.php?title=Stereo-isomeer&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Selfoonweergawe</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><picture><source media="(min-width: 500px)" srcset="/static/images/footer/wikimedia-button.svg" width="84" height="29"><img src="/static/images/footer/wikimedia.svg" width="25" height="25" alt="Wikimedia Foundation" lang="en" loading="lazy"></picture></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><picture><source media="(min-width: 500px)" srcset="/w/resources/assets/poweredby_mediawiki.svg" width="88" height="31"><img src="/w/resources/assets/mediawiki_compact.svg" alt="Powered by MediaWiki" lang="en" width="25" height="25" loading="lazy"></picture></a></li> </ul> </footer> </div> </div> </div> <div class="vector-header-container vector-sticky-header-container"> <div id="vector-sticky-header" class="vector-sticky-header"> <div class="vector-sticky-header-start"> <div class="vector-sticky-header-icon-start vector-button-flush-left vector-button-flush-right" aria-hidden="true"> <button class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-sticky-header-search-toggle" tabindex="-1" data-event-name="ui.vector-sticky-search-form.icon"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Soek</span> </button> </div> <div role="search" class="vector-search-box-vue vector-search-box-show-thumbnail vector-search-box"> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail"> <form action="/w/index.php" id="vector-sticky-search-form" class="cdx-search-input cdx-search-input--has-end-button"> <div class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Deursoek Wikipedia"> <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Spesiaal:Soek"> </div> <button class="cdx-button cdx-search-input__end-button">Soek</button> </form> </div> </div> </div> <div class="vector-sticky-header-context-bar"> <nav aria-label="Inhoud" class="vector-toc-landmark"> <div id="vector-sticky-header-toc" class="vector-dropdown mw-portlet mw-portlet-sticky-header-toc vector-sticky-header-toc vector-button-flush-left" > <input type="checkbox" id="vector-sticky-header-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-sticky-header-toc" class="vector-dropdown-checkbox " aria-label="Wissel die inhoudsopgawe" > <label id="vector-sticky-header-toc-label" for="vector-sticky-header-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Wissel die inhoudsopgawe</span> </label> <div class="vector-dropdown-content"> <div id="vector-sticky-header-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div class="vector-sticky-header-context-bar-primary" aria-hidden="true" ><span class="mw-page-title-main">Stereo-isomeer</span></div> </div> </div> <div class="vector-sticky-header-end" aria-hidden="true"> <div class="vector-sticky-header-icons"> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-talk-sticky-header" tabindex="-1" data-event-name="talk-sticky-header"><span class="vector-icon mw-ui-icon-speechBubbles mw-ui-icon-wikimedia-speechBubbles"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-subject-sticky-header" tabindex="-1" data-event-name="subject-sticky-header"><span class="vector-icon mw-ui-icon-article mw-ui-icon-wikimedia-article"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-history-sticky-header" tabindex="-1" data-event-name="history-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-history mw-ui-icon-wikimedia-wikimedia-history"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only mw-watchlink" id="ca-watchstar-sticky-header" tabindex="-1" data-event-name="watch-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-star mw-ui-icon-wikimedia-wikimedia-star"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-ve-edit-sticky-header" tabindex="-1" data-event-name="ve-edit-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-edit mw-ui-icon-wikimedia-wikimedia-edit"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-edit-sticky-header" tabindex="-1" data-event-name="wikitext-edit-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-wikiText mw-ui-icon-wikimedia-wikimedia-wikiText"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-viewsource-sticky-header" tabindex="-1" data-event-name="ve-edit-protected-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-editLock mw-ui-icon-wikimedia-wikimedia-editLock"></span> <span></span> </a> </div> <div class="vector-sticky-header-buttons"> <button class="cdx-button cdx-button--weight-quiet mw-interlanguage-selector" id="p-lang-btn-sticky-header" tabindex="-1" data-event-name="ui.dropdown-p-lang-btn-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-language mw-ui-icon-wikimedia-wikimedia-language"></span> <span>19 tale</span> </button> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive" id="ca-addsection-sticky-header" tabindex="-1" data-event-name="addsection-sticky-header"><span class="vector-icon mw-ui-icon-speechBubbleAdd-progressive mw-ui-icon-wikimedia-speechBubbleAdd-progressive"></span> <span>Nuwe onderwerp</span> </a> </div> <div class="vector-sticky-header-icon-end"> <div class="vector-user-links"> </div> </div> </div> </div> </div> <div class="mw-portlet mw-portlet-dock-bottom emptyPortlet" id="p-dock-bottom"> <ul> </ul> </div> <script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-75c688d46-bz9dl","wgBackendResponseTime":104,"wgPageParseReport":{"limitreport":{"cputime":"0.091","walltime":"0.147","ppvisitednodes":{"value":1237,"limit":1000000},"postexpandincludesize":{"value":4787,"limit":2097152},"templateargumentsize":{"value":550,"limit":2097152},"expansiondepth":{"value":18,"limit":100},"expensivefunctioncount":{"value":2,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":1667,"limit":5000000},"entityaccesscount":{"value":1,"limit":400},"timingprofile":["100.00% 106.600 1 -total"," 38.70% 41.255 1 Sjabloon:Normdata"," 28.90% 30.806 1 Sjabloon:Hoofartikel"," 26.35% 28.086 1 Sjabloon:Rellink"," 24.24% 25.836 1 Sjabloon:Namespace_detect"," 22.59% 24.085 5 Sjabloon:Chem"," 16.58% 17.676 5 Sjabloon:Chem/link"," 11.19% 11.924 21 Sjabloon:Chem/atom"," 8.33% 8.877 1 Sjabloon:Verwysings"," 3.97% 4.234 4 Sjabloon:Su"]},"scribunto":{"limitreport-timeusage":{"value":"0.027","limit":"10.000"},"limitreport-memusage":{"value":1017344,"limit":52428800}},"cachereport":{"origin":"mw-web.eqiad.main-5d8b68d754-xkg47","timestamp":"20250219180623","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"Stereo-isomeer","url":"https:\/\/af.wikipedia.org\/wiki\/Stereo-isomeer","sameAs":"http:\/\/www.wikidata.org\/entity\/Q235816","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q235816","author":{"@type":"Organization","name":"Contributors to Wikimedia projects"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2016-01-25T00:53:08Z","dateModified":"2024-11-21T00:57:55Z"}</script> </body> </html>