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title="Nitronium">Nitronium</a>)</span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Polyatomic ion</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">Not to be confused with <a href="/wiki/Nitrosonium" title="Nitrosonium">Nitrosonium</a>, a separate nitrogen-oxygen cation.</div><style data-mw-deduplicate="TemplateStyles:r1084375498">.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"> <caption>Nitronium ion </caption> <tbody><tr> <td colspan="2" class="borderless" style="text-align:center"> <table border="0" style="width:100%;display:inline-table;"> <tbody><tr> <td style="border-right:1px solid #aaa; width:50%;"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Nitronium-2D-dimensions.png" class="mw-file-description" title="Skeletal formula of nitronium with some dimensions added"><img alt="Skeletal formula of nitronium with some dimensions added" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/da/Nitronium-2D-dimensions.png/110px-Nitronium-2D-dimensions.png" decoding="async" width="110" height="58" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/da/Nitronium-2D-dimensions.png/165px-Nitronium-2D-dimensions.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/da/Nitronium-2D-dimensions.png/220px-Nitronium-2D-dimensions.png 2x" data-file-width="1100" data-file-height="575" /></a><figcaption>Skeletal formula of nitronium with some dimensions added</figcaption></figure> </td> <td style="width:50%;"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/File:Nitronium-3D-vdW.png" class="mw-file-description" title="Spacefill model of nitronium"><img alt="Spacefill model of nitronium" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/58/Nitronium-3D-vdW.png/110px-Nitronium-3D-vdW.png" decoding="async" width="110" height="69" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/58/Nitronium-3D-vdW.png/165px-Nitronium-3D-vdW.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/58/Nitronium-3D-vdW.png/220px-Nitronium-3D-vdW.png 2x" data-file-width="1100" data-file-height="692" /></a><figcaption>Spacefill model of nitronium</figcaption></figure> </td></tr></tbody></table> </td></tr> <tr> <td colspan="2" style="text-align:center; padding:2px;"><span typeof="mw:File"><a href="/wiki/File:Nitronium-3D-balls.png" class="mw-file-description" title="Ball and stick model of nitronium"><img alt="Ball and stick model of nitronium" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Nitronium-3D-balls.png/120px-Nitronium-3D-balls.png" decoding="async" width="120" height="77" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Nitronium-3D-balls.png/180px-Nitronium-3D-balls.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Nitronium-3D-balls.png/240px-Nitronium-3D-balls.png 2x" data-file-width="1090" data-file-height="700" /></a></span> </td></tr> <tr> <th colspan="2" style="background: #f8eaba; text-align: center;">Names </th></tr> <tr> <td colspan="2" style="text-align:left;"><a href="/wiki/Chemical_nomenclature" title="Chemical nomenclature">IUPAC name</a> <div style="max-width:22em; word-wrap:break-word; padding-left:1.7em;">Nitronium ion</div> </td></tr> <tr> <td colspan="2" style="text-align:left;"><a href="/wiki/Chemical_nomenclature#Systematic_name" title="Chemical nomenclature">Systematic IUPAC name</a> <div style="max-width:22em; word-wrap:break-word; padding-left:1.7em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0; max-width:22em;">Dioxidonitrogen(1+)<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></div></div> </td></tr> <tr> <th colspan="2" style="background: #f8eaba; text-align: center;">Identifiers </th></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/CAS_Registry_Number" title="CAS Registry Number">CAS Number</a></div> </td> <td><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"><ul><li><span title="commonchemistry.cas.org"><a rel="nofollow" class="external text" href="https://commonchemistry.cas.org/detail?cas_rn=12269-46-4">12269-46-4</a></span></li></ul></div> </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">3D model (<a href="/wiki/JSmol" class="mw-redirect" title="JSmol">JSmol</a>)</div> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><span title="chemapps.stolaf.edu (3D interactive model)"><a rel="nofollow" class="external text" href="https://chemapps.stolaf.edu/jmol/jmol.php?model=O%3D%5BN%2B%5D%3DO">Interactive image</a></span></li></ul></div> </td></tr> <tr> <td><a href="/wiki/ChEBI" title="ChEBI">ChEBI</a> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><span title="www.ebi.ac.uk"><a rel="nofollow" class="external text" href="https://www.ebi.ac.uk/chebi/searchId.do?chebiId=29424">CHEBI:29424</a></span></li></ul></div> </td></tr> <tr> <td><a href="/wiki/ChemSpider" title="ChemSpider">ChemSpider</a> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><span title="www.chemspider.com"><a rel="nofollow" class="external text" href="https://www.chemspider.com/Chemical-Structure.2844644.html">2844644</a></span><sup> <span typeof="mw:File"><span><img alt="check" src="//upload.wikimedia.org/wikipedia/en/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/en/thumb/f/fb/Yes_check.svg/11px-Yes_check.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/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></li></ul></div> </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/PubChem" title="PubChem">PubChem</a> <abbr title="Compound ID">CID</abbr></div> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><span title="pubchem.ncbi.nlm.nih.gov"><a rel="nofollow" class="external text" href="https://pubchem.ncbi.nlm.nih.gov/compound/3609161">3609161</a></span></li></ul></div> </td></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/CompTox_Chemicals_Dashboard" title="CompTox Chemicals Dashboard">CompTox Dashboard</a> <span style="font-weight:normal">(<abbr title="U.S. Environmental Protection Agency">EPA</abbr>)</span></div> </td> <td><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><span title="comptox.epa.gov"><a rel="nofollow" class="external text" href="https://comptox.epa.gov/dashboard/chemical/details/DTXSID60893596">DTXSID60893596</a> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q418329#P3117" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></li></ul></div> </td></tr> <tr> <td colspan="2"><div class="collapsible-list mw-collapsible mw-collapsed" style="text-align: left;"> <div style="line-height: 1.6em; font-weight: bold; text-align:left; font-weight:normal; background:transparent;"><div><a href="/wiki/International_Chemical_Identifier" title="International Chemical Identifier">InChI</a></div></div> <ul class="mw-collapsible-content" style="margin-top: 0; margin-bottom: 0; line-height: inherit; list-style: none; margin-left: 0; word-break:break-all;"><li style="line-height: inherit; margin: 0"><div style="border-top:1px solid #ccc; padding:0.2em 0 0.2em 1.5em; text-align:left;"><div style="word-wrap:break-word; text-indent:-1.5em; font-size:97%; line-height:120%;">InChI=1S/NO2/c2-1-3/q+1</div><div style="word-wrap:break-word; text-indent:-1.5em; font-size:97%; line-height:120%;">Key: OMBRFUXPXNIUCZ-UHFFFAOYSA-N</div></div></li></ul> </div> </td></tr> <tr> <td colspan="2"><div class="collapsible-list mw-collapsible mw-collapsed" style="text-align: left;"> <div style="line-height: 1.6em; font-weight: bold; text-align:left; font-weight:normal; background:transparent;"><div><a href="/wiki/Simplified_molecular-input_line-entry_system" class="mw-redirect" title="Simplified molecular-input line-entry system">SMILES</a></div></div> <ul class="mw-collapsible-content" style="margin-top: 0; margin-bottom: 0; line-height: inherit; list-style: none; margin-left: 0; word-break:break-all;"><li style="line-height: inherit; margin: 0"><div style="border-top:1px solid #ccc; padding:0.2em 0 0.2em 1.6em; word-wrap:break-word; text-indent:-1.5em; text-align:left; font-size:97%; line-height:120%;">O=[N+]=O</div></li></ul> </div> </td></tr> <tr> <th colspan="2" style="background: #f8eaba; text-align: center;">Properties </th></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Chemical_formula" title="Chemical formula">Chemical formula</a></div> </td> <td><style data-mw-deduplicate="TemplateStyles:r1123817410">.mw-parser-output .template-chem2-su{display:inline-block;font-size:80%;line-height:1;vertical-align:-0.35em}.mw-parser-output .template-chem2-su>span{display:block;text-align:left}.mw-parser-output sub.template-chem2-sub{font-size:80%;vertical-align:-0.35em}.mw-parser-output sup.template-chem2-sup{font-size:80%;vertical-align:0.65em}</style><span class="chemf nowrap">[NO<sub class="template-chem2-sub">2</sub>]<sup class="template-chem2-sup">+</sup></span>  </td></tr> <tr> <td><a href="/wiki/Molar_mass" title="Molar mass">Molar mass</a> </td> <td><span class="nowrap"><span data-sort-value="7001460050000000000♠"></span>46.005</span> g·mol<sup>−1</sup>   </td></tr> <tr> <th colspan="2" style="background: #f8eaba; text-align: center;">Thermochemistry </th></tr> <tr> <td><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Standard_molar_entropy" title="Standard molar entropy">Std molar<br />entropy</a> <span style="font-size:112%;">(<i>S</i><sup>⦵</sup><sub>298</sub>)</span></div> </td> <td>233.86 J K<sup>−1</sup> mol<sup>−1</sup> </td></tr> <tr> <td colspan="2" style="text-align:left; background:#f8eaba; border:1px solid #a2a9b1;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">Except where otherwise noted, data are given for materials in their <a href="/wiki/Standard_state" title="Standard state">standard state</a> (at 25 °C [77 °F], 100 kPa).</div> <div style="margin-top: 0.3em;"></div> <div style="margin-top: 0.3em; text-align: center;"><a href="/wiki/Wikipedia:Chemical_infobox#References" title="Wikipedia:Chemical infobox">Infobox references</a></div> </td></tr> </tbody></table><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Chemical compound</div> <p>The <b>nitronium ion</b>, <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">[<a href="/wiki/Nitrogen" title="Nitrogen">N</a><a href="/wiki/Oxygen" title="Oxygen">O</a><sub class="template-chem2-sub">2</sub>]<sup class="template-chem2-sup">+</sup></span>, is a <a href="/wiki/Cation" class="mw-redirect" title="Cation">cation</a>. It is an <a href="/wiki/Onium_ion" title="Onium ion">onium ion</a> because its nitrogen atom has +1 charge, similar to <a href="/wiki/Ammonium" title="Ammonium">ammonium</a> ion <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">[NH<sub class="template-chem2-sub">4</sub>]<sup class="template-chem2-sup">+</sup></span>. It is created by the removal of an electron from the <a href="/wiki/Paramagnetic" class="mw-redirect" title="Paramagnetic">paramagnetic</a> <a href="/wiki/Nitrogen_dioxide" title="Nitrogen dioxide">nitrogen dioxide</a> <a href="/wiki/Molecule" title="Molecule">molecule</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">NO<sub class="template-chem2-sub">2</sub></span>, or the <a href="/wiki/Protonation" title="Protonation">protonation</a> of <a href="/wiki/Nitric_acid" title="Nitric acid">nitric acid</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">HNO<sub class="template-chem2-sub">3</sub></span> (with removal of <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>O</span>).<sup id="cite_ref-G&E_2-0" class="reference"><a href="#cite_note-G&E-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>It is stable enough to exist in normal conditions, but it is generally reactive and used extensively as an <a href="/wiki/Electrophile" title="Electrophile">electrophile</a> in the <a href="/wiki/Nitration" title="Nitration">nitration</a> of other substances. The <a href="/wiki/Ion" title="Ion">ion</a> is generated <i><a href="/wiki/In_situ" title="In situ">in situ</a></i> for this purpose by mixing concentrated <a href="/wiki/Sulfuric_acid" title="Sulfuric acid">sulfuric acid</a> and concentrated <a href="/wiki/Nitric_acid" title="Nitric acid">nitric acid</a> according to the <a href="/wiki/Chemical_equilibrium" title="Chemical equilibrium">equilibrium</a>: </p> <dl><dd><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">H<sub class="template-chem2-sub">2</sub>SO<sub class="template-chem2-sub">4</sub> + HNO<sub class="template-chem2-sub">3</sub> → HSO<span class="template-chem2-su"><span>−</span><span>4</span></span> + [NO<sub class="template-chem2-sub">2</sub>]<sup class="template-chem2-sup">+</sup> + H<sub class="template-chem2-sub">2</sub>O</span></dd></dl> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Structure">Structure</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nitronium_ion&action=edit&section=1" title="Edit section: Structure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The nitronium ion is <a href="/wiki/Isoelectronicity" title="Isoelectronicity">isoelectronic</a> with <a href="/wiki/Carbon_dioxide" title="Carbon dioxide">carbon dioxide</a> and has the same linear structure and bond angle of 180°. For this reason it has a similar vibrational spectrum to carbon dioxide. Historically, the nitronium ion was detected by <a href="/wiki/Raman_spectroscopy" title="Raman spectroscopy">Raman spectroscopy</a>, because its symmetric stretch is Raman-active but infrared-inactive. The Raman-active symmetrical stretch was first used to identify the ion in nitrating mixtures.<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="Salts">Salts</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nitronium_ion&action=edit&section=2" title="Edit section: Salts"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A few stable nitronium salts with anions of weak <a href="/wiki/Nucleophile" title="Nucleophile">nucleophilicity</a> can be isolated. These include <a href="/wiki/Nitronium_perchlorate" title="Nitronium perchlorate">nitronium perchlorate</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">[NO<sub class="template-chem2-sub">2</sub>]<sup class="template-chem2-sup">+</sup>[ClO<sub class="template-chem2-sub">4</sub>]<sup class="template-chem2-sup">−</sup></span>, <a href="/wiki/Nitronium_tetrafluoroborate" title="Nitronium tetrafluoroborate">nitronium tetrafluoroborate</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">[NO<sub class="template-chem2-sub">2</sub>]<sup class="template-chem2-sup">+</sup>[BF<sub class="template-chem2-sub">4</sub>]<sup class="template-chem2-sup">−</sup></span>, nitronium <a href="/wiki/Hexafluorophosphate" title="Hexafluorophosphate">hexafluorophosphate</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">[NO<sub class="template-chem2-sub">2</sub>]<sup class="template-chem2-sup">+</sup>[PF<sub class="template-chem2-sub">6</sub>]<sup class="template-chem2-sup">−</sup></span>, nitronium <a href="/wiki/Hexafluoroarsenate" title="Hexafluoroarsenate">hexafluoroarsenate</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">[NO<sub class="template-chem2-sub">2</sub>]<sup class="template-chem2-sup">+</sup>[AsF<sub class="template-chem2-sub">6</sub>]<sup class="template-chem2-sup">−</sup></span>, and nitronium <a href="/wiki/Fluoroantimonic_acid" title="Fluoroantimonic acid">hexafluoroantimonate</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">[NO<sub class="template-chem2-sub">2</sub>]<sup class="template-chem2-sup">+</sup>[SbF<sub class="template-chem2-sub">6</sub>]<sup class="template-chem2-sup">−</sup></span>. These are all very <a href="/wiki/Hygroscopic" class="mw-redirect" title="Hygroscopic">hygroscopic</a> compounds.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>The solid form of <a href="/wiki/Dinitrogen_pentoxide" title="Dinitrogen pentoxide">dinitrogen pentoxide</a>, <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">N<sub class="template-chem2-sub">2</sub>O<sub class="template-chem2-sub">5</sub></span>, actually consists of nitronium and <a href="/wiki/Nitrate" title="Nitrate">nitrate</a> ions, so it is an <a href="/wiki/Ionic_compound" class="mw-redirect" title="Ionic compound">ionic compound</a>, nitronium nitrate <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">[NO<sub class="template-chem2-sub">2</sub>]<sup class="template-chem2-sup">+</sup>[NO<sub class="template-chem2-sub">3</sub>]<sup class="template-chem2-sup">−</sup></span>, not a <a href="/wiki/Molecular_solid" title="Molecular solid">molecular solid</a>. However, dinitrogen pentoxide in <a href="/wiki/Liquid" title="Liquid">liquid</a> or <a href="/wiki/Gas" title="Gas">gaseous</a> state is <a href="/wiki/Molecule" title="Molecule">molecular</a> and does not contain nitronium ions.<sup id="cite_ref-G&E_2-1" class="reference"><a href="#cite_note-G&E-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Related_species">Related species</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nitronium_ion&action=edit&section=3" title="Edit section: Related species"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The compounds <a href="/wiki/Nitryl_fluoride" title="Nitryl fluoride">nitryl fluoride</a>, <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">NO<sub class="template-chem2-sub">2</sub>F</span>, and <a href="/wiki/Nitryl_chloride" title="Nitryl chloride">nitryl chloride</a>, <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">NO<sub class="template-chem2-sub">2</sub>Cl</span>, are not nitronium salts but molecular compounds, as shown by their low boiling points (−72 °C and −6 °C respectively) and short nitrogen–halogen bond lengths (N–F 135 pm, N–Cl 184 pm).<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p><p>Addition of one electron forms the neutral <a href="/wiki/Nitryl" title="Nitryl">nitryl</a> <a href="/wiki/Radical_(chemistry)" title="Radical (chemistry)">radical</a>, <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">NO<sub class="template-chem2-sub">2</sub>•</span>; in fact, this is fairly stable and known as the compound <a href="/wiki/Nitrogen_dioxide" title="Nitrogen dioxide">nitrogen dioxide</a>. </p><p>The related negatively charged species is <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1123817410"><span class="chemf nowrap">NO<span class="template-chem2-su"><span>−</span><span>2</span></span></span>, the <a href="/wiki/Nitrite" title="Nitrite">nitrite</a> ion. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nitronium_ion&action=edit&section=4" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Nitrosonium" title="Nitrosonium">Nitrosonium</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Nitronium_ion&action=edit&section=5" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:29424">"dioxidonitrogen(1+) (CHEBI:29424)"</a>. <i>Chemical Entities of Biological Interest (ChEBI)</i>. UK: European Bioinformatics Institute.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Chemical+Entities+of+Biological+Interest+%28ChEBI%29&rft.atitle=dioxidonitrogen%281%2B%29+%28CHEBI%3A29424%29&rft_id=http%3A%2F%2Fwww.ebi.ac.uk%2Fchebi%2FsearchId.do%3FchebiId%3DCHEBI%3A29424&rfr_id=info%3Asid%2Fen.wikipedia.org%3ANitronium+ion" class="Z3988"></span></span> </li> <li id="cite_note-G&E-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-G&E_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-G&E_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFGreenwoodEarnshaw1997" class="citation book cs1"><a href="/wiki/Norman_Greenwood" title="Norman Greenwood">Greenwood, Norman N.</a>; Earnshaw, Alan (1997). <i>Chemistry of the Elements</i> (2nd ed.). <a href="/wiki/Butterworth-Heinemann" title="Butterworth-Heinemann">Butterworth-Heinemann</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-08-037941-8" title="Special:BookSources/978-0-08-037941-8"><bdi>978-0-08-037941-8</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Chemistry+of+the+Elements&rft.edition=2nd&rft.pub=Butterworth-Heinemann&rft.date=1997&rft.isbn=978-0-08-037941-8&rft.aulast=Greenwood&rft.aufirst=Norman+N.&rft.au=Earnshaw%2C+Alan&rfr_id=info%3Asid%2Fen.wikipedia.org%3ANitronium+ion" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFIngoldMillenPoole1946" class="citation journal cs1">Ingold, C. K.; Millen, D. J.; Poole, H. G. (1946). "Spectroscopic Identification of the Nitronium Ion". <i>Nature</i>. <b>158</b> (4014): 480–481. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/1946Natur.158..480I">1946Natur.158..480I</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1038%2F158480c0">10.1038/158480c0</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:4106964">4106964</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Nature&rft.atitle=Spectroscopic+Identification+of+the+Nitronium+Ion&rft.volume=158&rft.issue=4014&rft.pages=480-481&rft.date=1946&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A4106964%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1038%2F158480c0&rft_id=info%3Abibcode%2F1946Natur.158..480I&rft.aulast=Ingold&rft.aufirst=C.+K.&rft.au=Millen%2C+D.+J.&rft.au=Poole%2C+H.+G.&rfr_id=info%3Asid%2Fen.wikipedia.org%3ANitronium+ion" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFKenneth_Schofield1980" class="citation book cs1">Kenneth Schofield (1980). <i>Aromatic nitration</i>. CUP Archive. p. 88. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-521-23362-3" title="Special:BookSources/0-521-23362-3"><bdi>0-521-23362-3</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Aromatic+nitration&rft.pages=88&rft.pub=CUP+Archive&rft.date=1980&rft.isbn=0-521-23362-3&rft.au=Kenneth+Schofield&rfr_id=info%3Asid%2Fen.wikipedia.org%3ANitronium+ion" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCantrellDavidsonMcDanielShetter1988" class="citation journal cs1">Cantrell, C. A.; Davidson, J. A.; McDaniel, A. H.; Shetter, R. E.; Calvert, J. G. (1988). <a rel="nofollow" class="external text" href="https://aip.scitation.org/doi/10.1063/1.454679">"The equilibrium constant for N2O5⇄NO2+NO3: Absolute determination by direct measurement from 243 to 397 K"</a>. <i>The Journal of Chemical Physics</i>. <b>88</b> (8): 4997–5006. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1063%2F1.454679">10.1063/1.454679</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Journal+of+Chemical+Physics&rft.atitle=The+equilibrium+constant+for+N2O5%E2%87%84NO2%2BNO3%3A+Absolute+determination+by+direct+measurement+from+243+to+397+K&rft.volume=88&rft.issue=8&rft.pages=4997-5006&rft.date=1988&rft_id=info%3Adoi%2F10.1063%2F1.454679&rft.aulast=Cantrell&rft.aufirst=C.+A.&rft.au=Davidson%2C+J.+A.&rft.au=McDaniel%2C+A.+H.&rft.au=Shetter%2C+R.+E.&rft.au=Calvert%2C+J.+G.&rft_id=https%3A%2F%2Faip.scitation.org%2Fdoi%2F10.1063%2F1.454679&rfr_id=info%3Asid%2Fen.wikipedia.org%3ANitronium+ion" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><a href="/wiki/F._Albert_Cotton" title="F. Albert Cotton">F. A. Cotton</a> and G.Wilkinson, Advanced Inorganic Chemistry, 5th edition (1988), Wiley, p.333</span> </li> </ol></div></div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output 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0.25em"> <ul><li><a href="/wiki/Ammonia" title="Ammonia">NH<sub>3</sub></a></li> <li><a href="/wiki/Ammonium" title="Ammonium"><span class="chemf nowrap">NH<span class="template-chem2-su"><span>+</span><span>4</span></span></span></a></li> <li><a href="/wiki/Metal_amides#Alkali_metal_amides" title="Metal amides"><span class="chemf nowrap">NH<span class="template-chem2-su"><span>−</span><span>2</span></span></span></a></li> <li><a href="/wiki/Nitride" title="Nitride">N<sup>3−</sup></a></li> <li><a href="/wiki/Hydroxylamine" title="Hydroxylamine">NH<sub>2</sub>OH</a></li> <li><a href="/wiki/Hydrazine" title="Hydrazine">N<sub>2</sub>H<sub>4</sub></a></li> <li><a href="/wiki/Hydrazoic_acid" title="Hydrazoic acid">HN<sub>3</sub></a></li> <li><a href="/wiki/Azide" title="Azide"><span class="chemf nowrap">N<span class="template-chem2-su"><span>−</span><span>3</span></span></span></a></li> <li><a href="/wiki/Nitrogen_pentahydride" title="Nitrogen pentahydride"><i>NH<sub>5</sub></i></a> (?)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Organic</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Amine" title="Amine">NR<sub>3</sub></a></li> <li><a href="/wiki/Imine" title="Imine">>C=NR</a></li> <li><a href="/wiki/Amide" title="Amide">−CONR<sub>2</sub></a></li> <li><a href="/wiki/Nitrile" title="Nitrile">−CN</a></li> <li><a href="/wiki/Hydrogen_cyanide" title="Hydrogen cyanide">HCN</a></li> <li><a href="/wiki/Cyanide" title="Cyanide">CN<sup>−</sup></a></li> <li><a href="/wiki/Cyanogen" title="Cyanogen">(CN)<sub>2</sub></a></li> <li><a href="/wiki/Cyanamide" title="Cyanamide">H<sub>2</sub>NCN</a></li> <li><a href="/wiki/Cyanate" title="Cyanate">HOCN</a></li> <li><a href="/wiki/Isocyanate" title="Isocyanate">HNCO</a></li> <li><a href="/wiki/Isothiocyanate" title="Isothiocyanate">HNCS</a></li> <li><a href="/wiki/Diazomethane" title="Diazomethane">CH<sub>2</sub>N<sub>2</sub></a></li> <li><a href="/wiki/Nitroso" title="Nitroso">−NO</a></li> <li><a href="/wiki/Nitro_compound" title="Nitro compound">−NO<sub>2</sub></a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Nitrogen_oxide" title="Nitrogen oxide">Oxides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Nitric_oxide" title="Nitric oxide">NO</a> / <a href="/wiki/Dinitrogen_dioxide" title="Dinitrogen dioxide">(NO)<sub>2</sub></a></li> <li><a href="/wiki/Dinitrogen_trioxide" title="Dinitrogen trioxide">N<sub>2</sub>O<sub>3</sub></a></li> <li><a href="/wiki/Nitrous_acid" title="Nitrous acid">HNO<sub>2</sub></a> / <a href="/wiki/Nitrite" title="Nitrite"><span class="chemf nowrap">NO<span class="template-chem2-su"><span>−</span><span>2</span></span></span></a> / <a href="/wiki/Nitrosonium" title="Nitrosonium">NO<sup>+</sup></a></li> <li><a href="/wiki/Nitrogen_dioxide" title="Nitrogen dioxide">NO<sub>2</sub></a> / <a href="/wiki/Dinitrogen_tetroxide" title="Dinitrogen tetroxide">(NO<sub>2</sub>)<sub>2</sub></a></li> <li><a href="/wiki/Dinitrogen_pentoxide" title="Dinitrogen pentoxide">N<sub>2</sub>O<sub>5</sub></a></li> <li><a href="/wiki/Nitric_acid" title="Nitric acid">HNO<sub>3</sub></a> / <a href="/wiki/Nitrate" title="Nitrate"><span class="chemf nowrap">NO<span class="template-chem2-su"><span>−</span><span>3</span></span></span></a> / <a href="/wiki/Nitronium" class="mw-redirect" title="Nitronium"><span class="chemf nowrap">NO<span class="template-chem2-su"><span>+</span><span>2</span></span></span></a></li> <li><a href="/wiki/Nitrate_radical" title="Nitrate radical">NO<sub>3</sub></a></li> <li><a href="/wiki/Nitroxyl" title="Nitroxyl">HNO</a> / <a href="/wiki/Hyponitrous_acid" title="Hyponitrous acid">(HON)<sub>2</sub></a> / <a href="/wiki/Hyponitrite" title="Hyponitrite"><span class="chemf nowrap">N<sub class="template-chem2-sub">2</sub>O<span class="template-chem2-su"><span>−</span><span>2</span></span></span></a> / <a href="/wiki/Nitrous_oxide" title="Nitrous oxide">N<sub>2</sub>O</a></li> <li><a href="/wiki/Nitramide" title="Nitramide">H<sub>2</sub>NNO<sub>2</sub></a></li> <li><a href="/wiki/Peroxynitrous_acid" title="Peroxynitrous acid">HO<sub>2</sub>NO</a> / <a href="/wiki/Peroxynitrite" title="Peroxynitrite">ONOO<sup>−</sup></a></li> <li><a href="/wiki/Peroxynitric_acid" title="Peroxynitric acid">HO<sub>2</sub>NO<sub>2</sub></a> / <a href="/wiki/Peroxynitrate" title="Peroxynitrate">O<sub>2</sub>NOO<sup>−</sup></a></li> <li><a href="/wiki/Orthonitrate" title="Orthonitrate"><span class="chemf nowrap">NO<span class="template-chem2-su"><span>−</span><span>4</span></span></span></a></li> <li><a href="/wiki/Nitroxylic_acid" title="Nitroxylic acid">H<sub>4</sub>N<sub>2</sub>O<sub>4</sub></a> / <a href="/wiki/Angeli%27s_salt" title="Angeli's salt"><span class="chemf nowrap">N<sub class="template-chem2-sub">2</sub>O<span class="template-chem2-su"><span>2−</span><span>3</span></span></span></a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Halides</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Nitrogen_monofluoride" title="Nitrogen monofluoride">NF</a></li> <li><a href="/wiki/Nitrogen_difluoride" title="Nitrogen difluoride">NF<sub>2</sub></a></li> <li><a href="/wiki/Nitrogen_trifluoride" title="Nitrogen trifluoride">NF<sub>3</sub></a></li> <li><a href="/wiki/Nitrogen_pentafluoride" title="Nitrogen pentafluoride"><i>NF<sub>5</sub></i></a> (?)</li> <li><a href="/wiki/Nitrogen_trichloride" title="Nitrogen trichloride">NCl<sub>3</sub></a></li> <li><a href="/wiki/Nitrogen_tribromide" title="Nitrogen tribromide">NBr<sub>3</sub></a></li> <li><a href="/wiki/Nitrogen_triiodide" title="Nitrogen triiodide">NI<sub>3</sub></a></li> <li><a href="/wiki/Fluorine_azide" title="Fluorine azide">FN<sub>3</sub></a></li> <li><a href="/wiki/Chlorine_azide" title="Chlorine azide">ClN<sub>3</sub></a></li> <li><a href="/wiki/Bromine_azide" title="Bromine azide">BrN<sub>3</sub></a></li> <li><a href="/wiki/Iodine_azide" title="Iodine azide">IN<sub>3</sub></a></li> <li><a href="/wiki/Fluoroamine" title="Fluoroamine">NH<sub>2</sub>F</a></li> <li><a href="/wiki/Dinitrogen_difluoride" title="Dinitrogen difluoride">N<sub>2</sub>F<sub>2</sub></a></li> <li><a href="/wiki/Monochloramine" title="Monochloramine">NH<sub>2</sub>Cl</a></li> <li><a href="/w/index.php?title=Difluoramine&action=edit&redlink=1" class="new" title="Difluoramine (page does not exist)">NHF<sub>2</sub></a></li> <li><a href="/wiki/Dichloramine" title="Dichloramine">NHCl<sub>2</sub></a></li> <li><a href="/w/index.php?title=Dibromamine&action=edit&redlink=1" class="new" title="Dibromamine (page does not exist)">NHBr<sub>2</sub></a></li> <li><a href="/w/index.php?title=Diiodoamine&action=edit&redlink=1" class="new" title="Diiodoamine (page does not exist)">NHI<sub>2</sub></a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Oxidation_state" title="Oxidation state">Oxidation states</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"><span style="font-size:112%;"><b><a href="/wiki/Nitride" title="Nitride">−3</a></b></span>, <a href="/wiki/Hydrazine" title="Hydrazine">−2</a>, <a href="/wiki/Hydroxylamine" title="Hydroxylamine">−1</a>, 0, <a href="/wiki/Nitroxyl" title="Nitroxyl">+1</a>, <a href="/wiki/Nitric_oxide" title="Nitric oxide">+2</a>, <span style="font-size:112%;"><b><a href="/wiki/Nitrite" title="Nitrite">+3</a></b></span>, <a href="/wiki/Nitrogen_dioxide" title="Nitrogen dioxide">+4</a>, <span style="font-size:112%;"><b><a href="/wiki/Nitrate" title="Nitrate">+5</a></b></span> (a strongly <a href="/wiki/Acid" title="Acid">acidic</a> oxide)</div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Nitronium_ion&oldid=1254709424">https://en.wikipedia.org/w/index.php?title=Nitronium_ion&oldid=1254709424</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Oxycations" title="Category:Oxycations">Oxycations</a></li><li><a href="/wiki/Category:Nitronium_compounds" title="Category:Nitronium compounds">Nitronium compounds</a></li><li><a href="/wiki/Category:Functional_groups" 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