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甲硼烷 - 维基百科,自由的百科全书

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href="#结构"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>结构</span> </div> </a> <ul id="toc-结构-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-反应" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#反应"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>反应</span> </div> </a> <ul id="toc-反应-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-甲硼烷(5)" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#甲硼烷(5)"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>甲硼烷(5)</span> </div> </a> <ul id="toc-甲硼烷(5)-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-参见" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#参见"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>参见</span> </div> </a> <ul id="toc-参见-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-参考资料" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#参考资料"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>参考资料</span> </div> </a> <ul id="toc-参考资料-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="目录" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="目录" > <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="开关目录" > <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">开关目录</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">甲硼烷</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="前往另一种语言写成的文章。17种语言可用" > <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-17" 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">17种语言</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A8%D9%88%D8%B1%D8%A7%D9%86_(%D9%85%D8%B1%D9%83%D8%A8_%D9%83%D9%8A%D9%85%D9%8A%D8%A7%D8%A6%D9%8A)" title="بوران (مركب كيميائي) – 阿拉伯语" lang="ar" hreflang="ar" data-title="بوران (مركب كيميائي)" data-language-autonym="العربية" data-language-local-name="阿拉伯语" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Bor%C3%A0" title="Borà – 加泰罗尼亚语" lang="ca" hreflang="ca" data-title="Borà" data-language-autonym="Català" data-language-local-name="加泰罗尼亚语" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Boran" title="Boran – 捷克语" lang="cs" hreflang="cs" data-title="Boran" data-language-autonym="Čeština" data-language-local-name="捷克语" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%92%CE%BF%CF%81%CE%AC%CE%BD%CE%B9%CE%BF" title="Βοράνιο – 希腊语" lang="el" hreflang="el" data-title="Βοράνιο" data-language-autonym="Ελληνικά" data-language-local-name="希腊语" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Borane" title="Borane – 英语" lang="en" hreflang="en" data-title="Borane" data-language-autonym="English" data-language-local-name="英语" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Borano" title="Borano – 巴斯克语" lang="eu" hreflang="eu" data-title="Borano" data-language-autonym="Euskara" data-language-local-name="巴斯克语" 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%A8%D9%88%D8%B1%D8%A7%D9%86_(%D8%AA%D8%B1%DA%A9%DB%8C%D8%A8_%D8%B4%DB%8C%D9%85%DB%8C%D8%A7%DB%8C%DB%8C)" title="بوران (ترکیب شیمیایی) – 波斯语" lang="fa" hreflang="fa" data-title="بوران (ترکیب شیمیایی)" data-language-autonym="فارسی" data-language-local-name="波斯语" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Borane" title="Borane – 法语" lang="fr" hreflang="fr" data-title="Borane" data-language-autonym="Français" data-language-local-name="法语" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Bor%C3%A1n" title="Borán – 匈牙利语" lang="hu" hreflang="hu" data-title="Borán" data-language-autonym="Magyar" data-language-local-name="匈牙利语" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Boron_trihidrida" title="Boron trihidrida – 印度尼西亚语" lang="id" hreflang="id" data-title="Boron trihidrida" data-language-autonym="Bahasa Indonesia" data-language-local-name="印度尼西亚语" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B3%B4%EB%A0%88%EC%9D%B8" title="보레인 – 韩语" lang="ko" hreflang="ko" data-title="보레인" data-language-autonym="한국어" data-language-local-name="韩语" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%91%D0%BE%D1%80%D0%B0%D0%BD" title="Боран – 马其顿语" lang="mk" hreflang="mk" data-title="Боран" data-language-autonym="Македонски" data-language-local-name="马其顿语" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Borana" title="Borana – 马来语" lang="ms" hreflang="ms" data-title="Borana" data-language-autonym="Bahasa Melayu" data-language-local-name="马来语" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Boran" title="Boran – 罗马尼亚语" lang="ro" hreflang="ro" data-title="Boran" data-language-autonym="Română" data-language-local-name="罗马尼亚语" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%AC%E0%B1%8B%E0%B0%B0%E0%B1%87%E0%B0%A8%E0%B1%8D" title="బోరేన్ – 泰卢固语" lang="te" hreflang="te" data-title="బోరేన్" data-language-autonym="తెలుగు" data-language-local-name="泰卢固语" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Boran" title="Boran – 土耳其语" lang="tr" hreflang="tr" data-title="Boran" data-language-autonym="Türkçe" data-language-local-name="土耳其语" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Boran" title="Boran – 越南语" lang="vi" hreflang="vi" data-title="Boran" data-language-autonym="Tiếng Việt" data-language-local-name="越南语" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li> 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aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">维基百科,自由的百科全书</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="zh" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r84001320">.mw-parser-output .ib-chembox{border-collapse:collapse;text-align:left}.mw-parser-output .ib-chembox td,.mw-parser-output .ib-chembox th{border:1px solid #a2a9b1;width:40%}.mw-parser-output .ib-chembox td+td{width:60%}</style> <table class="infobox ib-chembox nounderlines" cellspacing="0" cellpadding="3" rules="all" style="background-color:#f0f0f0; float:right; margin: 0 0 1em 1em; border-color: #aaaaaa; border-style:solid; border:1px; border-collapse:collapse; empty-cells:show; width:305px; font-size:90%;"> <tbody><tr> <th colspan="2" style="font-size:120%; text-align:center; background:#d6e0dc;">甲硼烷 </th></tr> <tr> <td colspan="2" style="background:#ffffff; text-align:center;"><span typeof="mw:File"><a href="/wiki/File:Borane.png" class="mw-file-description" title="甲硼烷的结构"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Borane.png/220px-Borane.png" decoding="async" width="220" height="206" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Borane.png/330px-Borane.png 1.5x, //upload.wikimedia.org/wikipedia/commons/f/f2/Borane.png 2x" data-file-width="363" data-file-height="340" /></a></span> </td></tr> <tr> <td colspan="2" style="background:#ffffff; text-align:center;"> <table class="borderless"> <tbody><tr> <td><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Borane-3D-balls.png" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/58/Borane-3D-balls.png/150px-Borane-3D-balls.png" decoding="async" width="150" height="126" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/58/Borane-3D-balls.png/225px-Borane-3D-balls.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/58/Borane-3D-balls.png/300px-Borane-3D-balls.png 2x" data-file-width="1100" data-file-height="921" /></a><figcaption></figcaption></figure> </td> <td><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Borane-3D-vdW.png" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Borane-3D-vdW.png/150px-Borane-3D-vdW.png" decoding="async" width="150" height="146" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Borane-3D-vdW.png/225px-Borane-3D-vdW.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Borane-3D-vdW.png/300px-Borane-3D-vdW.png 2x" data-file-width="1100" data-file-height="1070" /></a><figcaption></figcaption></figure> </td></tr></tbody></table> </td></tr> <tr> <td colspan="2" style="max-width:305px; word-wrap: break-word; text-align: center;"><a href="/wiki/IUPAC%E5%91%BD%E5%90%8D%E6%B3%95" title="IUPAC命名法">IUPAC名</a><br />Borane<br /> <p>trihydridoboron </p> </td></tr> <tr> <th style="background:#D6E0DC; text-align:center;" colspan="2">识别 </th></tr> <tr> <td><a href="/wiki/CAS%E5%8F%B7" title="CAS号">CAS号</a> </td> <td><span class="reflink plainlinks nourlexpansion"><a rel="nofollow" class="external text" href="https://commonchemistry.cas.org/detail?cas_rn=13283-31-3">13283-31-3</a></span> <sup>&#160;<span typeof="mw:File"><span><img alt="check" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fb/Yes_check.svg/7px-Yes_check.svg.png" decoding="async" width="7" height="7" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fb/Yes_check.svg/11px-Yes_check.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fb/Yes_check.svg/14px-Yes_check.svg.png 2x" data-file-width="600" data-file-height="600" /></span></span><span style="display:none">Y</span></sup> </td></tr> <tr> <td><a href="/wiki/PubChem" title="PubChem">PubChem</a> </td> <td><span class="reflink plainlinks nourlexpansion"><a rel="nofollow" class="external text" href="https://pubchem.ncbi.nlm.nih.gov/compound/6331">6331</a></span> </td></tr> <tr> <td><a href="/wiki/ChemSpider" title="ChemSpider">ChemSpider</a> </td> <td><span class="reflink plainlinks nourlexpansion"><a rel="nofollow" class="external text" href="http://www.chemspider.com/6091">6091</a></span> </td></tr> <tr> <td><a href="/wiki/SMILES" class="mw-redirect" title="SMILES">SMILES</a> </td> <td><div style="word-break:break-all;"><div class="collapsible-list mw-collapsible mw-collapsed" style="text-align: left;"> <div style="line-height: 1.6em; font-weight: bold;"><div>&#160;</div></div> <ul class="mw-collapsible-content" style="margin-top: 0; margin-bottom: 0; line-height: inherit; list-style: none; margin-left: 0;"><li style="line-height: inherit; margin: 0"><span lang="en">B</span></li></ul> </div></div> </td></tr> <tr> <td><a href="/wiki/%E7%9B%96%E5%A2%A8%E6%9E%97%E6%95%B0%E6%8D%AE%E5%BA%93" title="盖墨林数据库">Gmelin</a> </td> <td>44 </td></tr> <tr> <td><a href="/wiki/ChEBI" title="ChEBI">ChEBI</a> </td> <td><span class="reflink plainlinks nourlexpansion"><a rel="nofollow" class="external text" href="http://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:30149">30149</a></span> </td></tr> <tr> <th style="background:#D6E0DC; text-align:center;" colspan="2">性质 </th></tr> <tr> <td><a href="/wiki/%E5%8C%96%E5%AD%A6%E5%BC%8F" title="化学式">化学式</a> </td> <td><span lang="en">BH<sub>3</sub></span> </td></tr> <tr> <td><a href="/wiki/%E6%91%A9%E5%B0%94%E8%B4%A8%E9%87%8F" title="摩尔质量">摩尔质量</a> </td> <td>13.83 g·mol&#x207b;&#xb9; </td></tr> <tr> <th style="background:#D6E0DC; text-align:center;" colspan="2">结构 </th></tr> <tr> <td><a href="/wiki/%E5%81%B6%E6%A5%B5%E5%AD%90#分子的電偶極矩" title="偶極子">偶极矩</a> </td> <td>0 <a href="/wiki/%E5%BE%B7%E6%8B%9C" title="德拜">D</a> </td></tr> <tr> <th style="background:#D6E0DC; text-align:center;" colspan="2">危险性 </th></tr> <tr> <td><a href="/wiki/%E8%87%AA%E7%87%83" title="自燃">自燃温度</a> </td> <td>38&#160;°C </td></tr> <tr> <th style="background:#D6E0DC; text-align:center;" colspan="2">相关物质 </th></tr> <tr> <td>相关硼化合物 </td> <td><a href="/wiki/%E4%B9%99%E7%A1%BC%E7%83%B7" title="乙硼烷">乙硼烷</a><br /><a href="/wiki/%E4%B8%89%E6%B0%9F%E5%8C%96%E7%A1%BC" title="三氟化硼">三氟化硼</a> </td></tr> <tr> <td style="background:#D6E0DC; text-align:center;" colspan="2">若非注明,所有数据均出自<a href="/wiki/%E6%A0%87%E5%87%86%E7%8A%B6%E6%80%81" title="标准状态">标准状态(25 ℃,100 kPa)</a>下。 </td></tr></tbody></table> <p><b>甲硼烷</b>,又称<b>三氢化硼</b>,是一種<a href="/wiki/%E6%97%A0%E6%9C%BA%E5%8C%96%E5%90%88%E7%89%A9" title="无机化合物">无机化合物</a>,<a href="/wiki/%E5%8C%96%E5%AD%A6%E5%BC%8F" title="化学式">化学式</a>为BH<sub>3</sub>。它很不稳定,具有高反应性。<a href="/wiki/%E7%BE%B0%E5%9F%BA%E7%94%B2%E7%A1%BC%E7%83%B7" title="羰基甲硼烷">羰基甲硼烷</a>(BH<sub>3</sub>CO)的制备在探索甲硼烷的化学过程中起着重要作用,因为它可能存在甲硼烷分子。 <sup id="cite_ref-Burg1937_1-0" class="reference"><a href="#cite_note-Burg1937-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> 但是,BH<sub>3</sub>分子是非常强的<a href="/wiki/%E8%B7%AF%E6%98%93%E6%96%AF%E9%85%B8" class="mw-redirect" title="路易斯酸">路易斯酸</a>。因此,它具有很高的反应性,只能直接在流动系统中以连续产生的,短暂的产物形式观察到。甲硼烷也可以通过激光烧蚀的原子硼与氢的反应而直接观察到。 <sup id="cite_ref-TagueAndrews1994_2-0" class="reference"><a href="#cite_note-TagueAndrews1994-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="结构"><span id=".E7.BB.93.E6.9E.84"></span>结构</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E7%94%B2%E7%A1%BC%E7%83%B7&amp;action=edit&amp;section=1" title="编辑章节:结构"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>BH<sub>3</sub>中,硼原子为<i>sp<sup>2</sup></i>杂化,分子为<a href="/wiki/%E5%B9%B3%E9%9D%A2%E4%B8%89%E8%A7%92%E5%BD%A2%E5%88%86%E5%AD%90%E6%9E%84%E5%9E%8B" title="平面三角形分子构型">平面三角形</a>结构,D<sub>3h</sub><a href="/wiki/%E5%B0%8D%E7%A8%B1%E7%BE%A4" class="mw-disambig" title="對稱群">对称群</a>,与<a href="/wiki/%E4%BB%B7%E5%B1%82%E7%94%B5%E5%AD%90%E5%AF%B9%E4%BA%92%E6%96%A5%E7%90%86%E8%AE%BA" title="价层电子对互斥理论">价层电子对互斥理论</a>的预测相吻合。尽管B-H键是极性共价键,但其分子对称性抵消了偶极矩,使得偶极矩为0。B–H键的键长为119&#160;<a href="/wiki/%E7%9A%AE%E7%B1%B3" title="皮米">pm</a>。<sup id="cite_ref-Kawaguchi1992_3-0" class="reference"><a href="#cite_note-Kawaguchi1992-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> </p><p>在正常情况下,BH<sub>3</sub>会二聚成<a href="/wiki/%E4%B9%99%E7%A1%BC%E7%83%B7" title="乙硼烷">B<sub>2</sub>H<sub>6</sub></a>。甲硼烷是制备乙硼烷时的中间产物:<sup id="cite_ref-Greenwood&amp;Earnshaw2d_4-0" class="reference"><a href="#cite_note-Greenwood&amp;Earnshaw2d-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> </p> <dl><dd>BX<sub>3</sub> +BH<sub>4</sub><sup>−</sup> → HBX<sub>3</sub><sup>−</sup> + (BH<sub>3</sub>) (X=F, Cl, Br, I)</dd> <dd>2 BH<sub>3</sub> → B<sub>2</sub>H<sub>6</sub></dd></dl> <p>估计BH<sub>3</sub>的二聚标准焓为−170 kJ mol<sup>−1</sup>。<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup> BH<sub>3</sub> 中的硼有 6 颗价电子。 因此,它是强<a href="/wiki/%E8%B7%AF%E6%98%93%E6%96%AF%E9%85%B8" class="mw-redirect" title="路易斯酸">路易斯酸</a>,并与任何<a href="/wiki/%E8%B7%AF%E6%98%93%E6%96%AF%E9%B9%BC" class="mw-redirect" title="路易斯鹼">路易斯碱</a>,也就是下方的L反应,形成加合物。 </p> <dl><dd>BH<sub>3</sub> + L → L—BH<sub>3</sub></dd></dl> <p>路易斯碱会把一对价电子捐给甲硼烷分子,形成一个<a href="/wiki/%E5%85%B1%E4%BB%B7" class="mw-redirect" title="共价">共价</a>配位键。 有一些化合物是热稳定的,不过容易被空气氧化。含有<a href="/wiki/%E7%94%B2%E7%A1%AB%E9%86%9A%E7%A1%BC%E7%83%B7" title="甲硫醚硼烷">甲硫醚硼烷</a>和<a href="/wiki/%E5%9B%9B%E6%B0%A2%E5%91%8B%E5%96%83%E7%A1%BC%E7%83%B7" title="四氢呋喃硼烷">四氢呋喃硼烷</a>的溶液可商购获得,不过要在四氢呋喃硼烷中加入稳定剂,以防止THF氧化甲硼烷。 <sup id="cite_ref-OlahMolner_6-0" class="reference"><a href="#cite_note-OlahMolner-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup> 根据光谱和热化学数据估算的几种甲硼烷常见的加合物的稳定性序列如下: </p> <dl><dd><a href="/wiki/%E4%B8%89%E6%B0%9F%E5%8C%96%E7%A3%B7" title="三氟化磷">PF<sub>3</sub></a> &lt; <a href="/wiki/%E4%B8%80%E6%B0%A7%E5%8C%96%E7%A2%B3" title="一氧化碳">CO </a>&lt; <a href="/wiki/%E4%B9%99%E9%86%9A" title="乙醚">Et<sub>2</sub>O </a>&lt; <a href="/wiki/%E7%94%B2%E9%86%9A" class="mw-redirect" title="甲醚">Me<sub>2</sub>O </a>&lt; C<sub>4</sub>H<sub>8</sub>O &lt; C<sub>4</sub>H<sub>8</sub>S &lt; <a href="/wiki/%E4%B9%99%E7%A1%AB%E9%86%9A" class="mw-redirect" title="乙硫醚">Et<sub>2</sub>S </a>&lt; <a href="/wiki/%E7%94%B2%E7%A1%AB%E9%86%9A" class="mw-redirect" title="甲硫醚">Me<sub>2</sub>S </a>&lt; Py &lt; <a href="/wiki/%E4%B8%89%E7%94%B2%E8%83%BA" title="三甲胺">Me<sub>3</sub>N </a>&lt; <a href="/wiki/%E6%B0%A2%E8%B4%9F%E7%A6%BB%E5%AD%90" title="氢负离子">H<sup>−</sup></a></dd></dl> <p>BH<sub>3</sub> 是一种<a href="/wiki/%E8%BD%AF%E9%85%B8" class="mw-redirect" title="软酸">软酸</a>,和硫原子加合所形成的化合物比和氧原子加合稳定。<sup id="cite_ref-Greenwood&amp;Earnshaw2d_4-1" class="reference"><a href="#cite_note-Greenwood&amp;Earnshaw2d-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup>BH<sub>3</sub> 的水溶液极度不稳定。<sup id="cite_ref-Finn1972_7-0" class="reference"><a href="#cite_note-Finn1972-7"><span class="cite-bracket">&#91;</span>7<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-D&#39;Ulivo2010_8-0" class="reference"><a href="#cite_note-D&#39;Ulivo2010-8"><span class="cite-bracket">&#91;</span>8<span class="cite-bracket">&#93;</span></a></sup> </p> <dl><dd><span class="chemf nowrap">BH<span style="line-height:1.2em;text-indent:0em;display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;font-size:70%;text-align:left"><br />3</span></span> + <span class="chemf nowrap">3H<span style="line-height:1.2em;text-indent:0em;display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;font-size:70%;text-align:left"><br />2</span>O</span> → <span class="chemf nowrap">B(OH)<span style="line-height:1.2em;text-indent:0em;display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;font-size:70%;text-align:left"><br />3</span></span> + <span class="chemf nowrap">3 H<span style="line-height:1.2em;text-indent:0em;display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;font-size:70%;text-align:left"><br />2</span></span></dd></dl> <div class="mw-heading mw-heading2"><h2 id="反应"><span id=".E5.8F.8D.E5.BA.94"></span>反应</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E7%94%B2%E7%A1%BC%E7%83%B7&amp;action=edit&amp;section=2" title="编辑章节:反应"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>BH<sub>3</sub>是<a href="/wiki/%E4%B9%99%E7%A1%BC%E7%83%B7" title="乙硼烷">乙硼烷</a>反应时的中间活性体,可以合成更大的<a href="/wiki/%E7%A1%BC%E7%83%B7" title="硼烷">硼烷</a>:<sup id="cite_ref-Greenwood&amp;Earnshaw2d_4-2" class="reference"><a href="#cite_note-Greenwood&amp;Earnshaw2d-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> </p> <dl><dd>B<sub>2</sub>H<sub>6</sub> ⇌ 2BH<sub>3</sub></dd> <dd>BH<sub>3</sub> +B<sub>2</sub>H<sub>6</sub> → <a href="/w/index.php?title=%E4%B8%99%E7%A1%BC%E7%83%B7&amp;action=edit&amp;redlink=1" class="new" title="丙硼烷(页面不存在)">B<sub>3</sub>H<sub>7</sub></a> +H<sub>2</sub></dd> <dd>BH<sub>3</sub> + B<sub>3</sub>H<sub>7</sub> ⇌ <a href="/wiki/%E4%B8%81%E7%A1%BC%E7%83%B7" title="丁硼烷"> B<sub>4</sub>H<sub>10</sub></a></dd> <dd>B<sub>2</sub>H<sub>6</sub> + B<sub>3</sub>H<sub>7</sub> → BH<sub>3</sub> + B<sub>4</sub>H<sub>10</sub> <dl><dd><dl><dd><dl><dd><dl><dd>⇌ <a href="/wiki/%E6%88%8A%E7%A1%BC%E7%83%B7" title="戊硼烷">B<sub>5</sub>H<sub>11</sub> </a>+ H<sub>2</sub></dd></dl></dd></dl></dd></dl></dd></dl></dd></dl> <p>之后的过程会产生更大的硼烷,最终产物是 B<sub>10</sub>H<sub>14</sub> 作为受聚合物材料污染的最稳定物质,还有少量的 B<sub>20</sub>H<sub>26</sub>。 </p><p>硼烷氨,可以由其它甲硼烷加合物的置换反应获得。加热时,硼烷氨中的氢气流失,形成<a href="/wiki/%E7%8E%AF%E7%A1%BC%E6%B0%AE%E7%83%B7" title="环硼氮烷">环硼氮烷</a>,化学式(HBNH)<sub>3</sub>。<sup id="cite_ref-InorgChem_9-0" class="reference"><a href="#cite_note-InorgChem-9"><span class="cite-bracket">&#91;</span>9<span class="cite-bracket">&#93;</span></a></sup> </p><p>甲硼烷的加合物被广泛用于<a href="/wiki/%E6%9C%89%E6%9C%BA%E5%90%88%E6%88%90" title="有机合成">有机合成</a>的<span class="ilh-all ilh-blue" data-orig-title="硼氢化反应" data-lang-code="en" data-lang-name="英语" data-foreign-title="hydroboration"><span class="ilh-page"><a href="/wiki/%E7%A1%BC%E6%B0%A2%E5%8C%96%E5%8F%8D%E5%BA%94" class="mw-redirect" title="硼氢化反应">硼氢化反应</a></span></span>。在硼氢化反应中, BH<sub>3</sub> 被加入到烯烃的 C=C 双键并形成三烷基硼: </p> <dl><dd>(THF)BH<sub>3</sub> + 3&#160;CH<sub>2</sub>=CHR → B(CH<sub>2</sub>CH<sub>2</sub>R)<sub>3</sub> + THF</dd></dl> <p>该反应是<a href="/wiki/%E5%8C%BA%E5%9F%9F%E9%80%89%E6%8B%A9%E6%80%A7" title="区域选择性">区域选择性</a>的,可以使用其他硼烷衍生物来提供更高的区域选择性。 <sup id="cite_ref-Burkhardt2006_10-0" class="reference"><a href="#cite_note-Burkhardt2006-10"><span class="cite-bracket">&#91;</span>10<span class="cite-bracket">&#93;</span></a></sup> 产物三烷基硼可以转化为有用的有机衍生物。使用大体积烯烃可以制备诸如[HBR<sub>2</sub>]<sub>2</sub>的物质,它们在更专业的应用中也是有用的试剂。 比<a href="/wiki/%E5%9B%9B%E6%B0%A2%E5%91%8B%E5%96%83%E7%A1%BC%E7%83%B7" title="四氢呋喃硼烷">四氢呋喃硼烷</a>稳定的<a href="/wiki/%E7%94%B2%E7%A1%AB%E9%86%9A%E7%A1%BC%E7%83%B7" title="甲硫醚硼烷">甲硫醚硼烷</a>也能被使用。<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Burkhardt2006_10-1" class="reference"><a href="#cite_note-Burkhardt2006-10"><span class="cite-bracket">&#91;</span>10<span class="cite-bracket">&#93;</span></a></sup> </p><p>硼氢化反应可以与氧化反应结合,形成<a href="/wiki/%E7%A1%BC%E6%B0%A2%E5%8C%96-%E6%B0%A7%E5%8C%96%E5%8F%8D%E5%BA%94" title="硼氢化-氧化反应">硼氢化-氧化反应</a>。在该反应中,生成的有机硼化合物中的硼烷基会被羟基取代。 </p> <div class="mw-heading mw-heading2"><h2 id="甲硼烷(5)"><span id=".E7.94.B2.E7.A1.BC.E7.83.B7.285.29"></span>甲硼烷(5)</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E7%94%B2%E7%A1%BC%E7%83%B7&amp;action=edit&amp;section=3" title="编辑章节:甲硼烷(5)"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>甲硼烷(5)是甲硼烷的<a href="/wiki/%E5%8F%8C%E6%B0%A2%E9%85%8D%E5%90%88%E7%89%A9" title="双氢配合物">双氢配合物</a>,化学式BH<sub>5</sub> 或 BH<sub>3</sub>(η<sup>2</sup>-H<sub>2</sub>).<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">&#91;</span>12<span class="cite-bracket">&#93;</span></a></sup>它只能在低温下存在。<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">&#91;</span>13<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">&#91;</span>14<span class="cite-bracket">&#93;</span></a></sup> 甲硼烷(5)和<a href="/wiki/%E7%94%B2%F0%AC%AD%A9%E7%A6%BB%E5%AD%90" title="甲𬭩离子">甲𬭩离子</a> (CH<sub>5</sub><sup>+</sup>) 是等电子体。<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">&#91;</span>15<span class="cite-bracket">&#93;</span></a></sup>它是<a href="/wiki/%E7%A1%BC%E6%B0%A2%E5%8C%96%E7%89%A9" title="硼氢化物">硼氢离子</a>的共轭碱。 </p> <div class="mw-heading mw-heading2"><h2 id="参见"><span id=".E5.8F.82.E8.A7.81"></span>参见</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E7%94%B2%E7%A1%BC%E7%83%B7&amp;action=edit&amp;section=4" title="编辑章节:参见"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/%E7%A1%BC%E7%83%B7" title="硼烷">硼烷</a></li> <li><a href="/wiki/%E4%B9%99%E7%A1%BC%E7%83%B7" title="乙硼烷">乙硼烷</a></li> <li><a href="/wiki/%E4%B8%89%E6%B0%9F%E5%8C%96%E7%A1%BC" title="三氟化硼">三氟化硼</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="参考资料"><span id=".E5.8F.82.E8.80.83.E8.B5.84.E6.96.99"></span>参考资料</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E7%94%B2%E7%A1%BC%E7%83%B7&amp;action=edit&amp;section=5" title="编辑章节:参考资料"><span>编辑</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-Burg1937-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-Burg1937_1-0">^</a></b></span> <span class="reference-text"><cite class="citation journal">Burg, Anton B.; Schlesinger, H. I. Hydrides of boron. VII. Evidence of the transitory existence of borine (<span class="chemf nowrap">BH<span style="line-height:1.2em;text-indent:0em;display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;font-size:70%;text-align:left"><br />3</span></span>): Borine carbonyl and borine trimethylammine. Journal of the American Chemical Society. May 1937, <b>59</b> (5): 780–787. <a rel="nofollow" class="external text" href="https://doi.org/10.1021%2Fja01284a002"><span title="數位物件識別號">doi:10.1021/ja01284a002</span></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E7%94%B2%E7%A1%BC%E7%83%B7&amp;rft.atitle=Hydrides+of+boron.+VII.+Evidence+of+the+transitory+existence+of+borine+%28%3Cspan+class%3D%22chemf+nowrap%22%3EBH%3Cspan+style%3D%22line-height%3A1.2em%3Btext-indent%3A0em%3Bdisplay%3Ainline-block%3Bmargin-bottom%3A-0.3em%3Bvertical-align%3A-0.4em%3Bfont-size%3A70%25%3Btext-align%3Aleft%22%3E%3Cbr+%2F%3E3%3C%2Fspan%3E%3C%2Fspan%3E%29%3A+Borine+carbonyl+and+borine+trimethylammine&amp;rft.au=Schlesinger%2C+H.+I.&amp;rft.aufirst=Anton+B.&amp;rft.aulast=Burg&amp;rft.date=1937-05&amp;rft.genre=article&amp;rft.issue=5&amp;rft.jtitle=Journal+of+the+American+Chemical+Society&amp;rft.pages=780-787&amp;rft.volume=59&amp;rft_id=info%3Adoi%2F10.1021%2Fja01284a002&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;">&#160;</span></span></span> </li> <li id="cite_note-TagueAndrews1994-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-TagueAndrews1994_2-0">^</a></b></span> <span class="reference-text"><cite class="citation journal">Tague, Thomas J.; Andrews, Lester. Reactions of Pulsed-Laser Evaporated Boron Atoms with Hydrogen. Infrared Spectra of Boron Hydride Intermediate Species in Solid Argon. Journal of the American Chemical Society. 1994, <b>116</b> (11): 4970–4976. <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/0002-7863"><span title="国际标准连续出版物号">ISSN&#160;0002-7863</span></a>. <a rel="nofollow" class="external text" href="https://doi.org/10.1021%2Fja00090a048"><span title="數位物件識別號">doi:10.1021/ja00090a048</span></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E7%94%B2%E7%A1%BC%E7%83%B7&amp;rft.atitle=Reactions+of+Pulsed-Laser+Evaporated+Boron+Atoms+with+Hydrogen.+Infrared+Spectra+of+Boron+Hydride+Intermediate+Species+in+Solid+Argon&amp;rft.au=Andrews%2C+Lester&amp;rft.aufirst=Thomas+J.&amp;rft.aulast=Tague&amp;rft.date=1994&amp;rft.genre=article&amp;rft.issn=0002-7863&amp;rft.issue=11&amp;rft.jtitle=Journal+of+the+American+Chemical+Society&amp;rft.pages=4970-4976&amp;rft.volume=116&amp;rft_id=info%3Adoi%2F10.1021%2Fja00090a048&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;">&#160;</span></span></span> </li> <li id="cite_note-Kawaguchi1992-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-Kawaguchi1992_3-0">^</a></b></span> <span class="reference-text"><cite class="citation journal">Kawaguchi, Kentarou. Fourier transform infrared spectroscopy of the BH<sub>3</sub> ν<sub>3</sub> band. 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Journal of the American Chemical Society. 1 June 1994, <b>116</b> (11): 4970–4976. <a rel="nofollow" class="external text" href="https://doi.org/10.1021%2Fja00090a048"><span title="數位物件識別號">doi:10.1021/ja00090a048</span></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E7%94%B2%E7%A1%BC%E7%83%B7&amp;rft.atitle=Reactions+of+Pulsed-Laser+Evaporated+Boron+Atoms+with+Hydrogen.+Infrared+Spectra+of+Boron+Hydride+Intermediate+Species+in+Solid+Argon&amp;rft.au=Andrews%2C+Lester&amp;rft.aufirst=Thomas+J.&amp;rft.aulast=Tague&amp;rft.date=1994-06-01&amp;rft.genre=article&amp;rft.issue=11&amp;rft.jtitle=Journal+of+the+American+Chemical+Society&amp;rft.pages=4970-4976&amp;rft.volume=116&amp;rft_id=info%3Adoi%2F10.1021%2Fja00090a048&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;">&#160;</span></span></span> </li> <li id="cite_note-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-14">^</a></b></span> <span class="reference-text"><cite class="citation journal">Schreiner, Peter R.; Schaefer III, Henry F.; Schleyer, Paul von Ragué. The structure and stability of BH<sub>5</sub>. Does correlation make it a stable molecule? Qualitative changes at high levels of theory. The Journal of Chemical Physics. 1 June 1994, <b>101</b> (9): 7625. <a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/1994JChPh.101.7625S"><span title="Bibcode">Bibcode:1994JChPh.101.7625S</span></a>. <a rel="nofollow" class="external text" href="https://doi.org/10.1063%2F1.468496"><span title="數位物件識別號">doi:10.1063/1.468496</span></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E7%94%B2%E7%A1%BC%E7%83%B7&amp;rft.atitle=The+structure+and+stability+of+BH%3Csub%3E5%3C%2Fsub%3E.+Does+correlation+make+it+a+stable+molecule%3F+Qualitative+changes+at+high+levels+of+theory&amp;rft.au=Schaefer+III%2C+Henry+F.&amp;rft.au=Schleyer%2C+Paul+von+Ragu%C3%A9&amp;rft.aufirst=Peter+R.&amp;rft.aulast=Schreiner&amp;rft.date=1994-06-01&amp;rft.genre=article&amp;rft.issue=9&amp;rft.jtitle=The+Journal+of+Chemical+Physics&amp;rft.pages=7625&amp;rft.volume=101&amp;rft_id=info%3Abibcode%2F1994JChPh.101.7625S&amp;rft_id=info%3Adoi%2F10.1063%2F1.468496&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;">&#160;</span></span></span> </li> <li id="cite_note-15"><span class="mw-cite-backlink"><b><a href="#cite_ref-15">^</a></b></span> <span class="reference-text">A Life of Magic Chemistry: Autobiographical Reflections Including Post-Nobel Prize Years and the Methanol Economy, 159p</span> </li> </ol></div> <!-- NewPP limit report Parsed by mw‐api‐int.codfw.main‐54c7cf74fd‐zhbxd Cached time: 20250314182049 Cache expiry: 2592000 Reduced expiry: false Complications: [show‐toc] CPU time usage: 0.314 seconds Real time usage: 0.410 seconds Preprocessor visited node count: 4258/1000000 Post‐expand include size: 54748/2097152 bytes Template argument size: 5029/2097152 bytes Highest expansion depth: 19/100 Expensive parser function count: 6/500 Unstrip recursion depth: 1/20 Unstrip post‐expand size: 23793/5000000 bytes Lua time usage: 0.103/10.000 seconds Lua memory usage: 4725773/52428800 bytes Number of Wikibase entities loaded: 0/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 326.051 1 -total 49.72% 162.108 1 Template:Reflist 38.92% 126.895 1 Template:Chembox 25.11% 81.856 11 Template:Cite_journal 21.12% 68.865 1 Template:Chembox_Identifiers 16.25% 52.968 1 Template:ISBN 8.02% 26.143 1 Template:Catalog_lookup_link 6.96% 22.705 78 Template:Chembox_entry 5.31% 17.303 5 Template:Chem 4.85% 15.819 1 Template:Chembox_Properties --> <!-- Saved in parser cache with key zhwiki:pcache:5111415:|#|:idhash:canonical!zh and timestamp 20250314182049 and revision id 84654826. 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