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<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Germaniumnitrid</span></h1>
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<div id="mw-content-text" class="mw-body-content mw-content-ltr" lang="de" dir="ltr"><div class="mw-content-ltr mw-parser-output" lang="de" dir="ltr"><table class="wikitable infobox float-right" id="Vorlage_Infobox_Chemikalie" style="font-size:90%; margin-top:0; width:350px;" summary="Infobox Chemikalie">

<tbody><tr>
<th colspan="2" style="background:#FFDEAD; color:#202122;">Kristallstruktur
</th></tr>
<tr>
<td colspan="2" class="hintergrundfarbe-basis" style="text-align:center;"><span typeof="mw:File"></span>
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<td colspan="2" style="text-align:center; font-size:80%;"><span style="background:#C0C0C0;border-radius: 12px;color: transparent; width: 12px; line-height:12px;display:inline-block;">_</span> <a href="Germanium" title="Germanium">Ge</a><sup>4+</sup> <span style="visibility:hidden;">0</span> <span style="background:#0000FF;border-radius: 12px;color: transparent; width: 12px; line-height:12px;display:inline-block;">_</span> <a href="Stickstoff" title="Stickstoff">N</a><sup>3−</sup>
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<tr>
<td><a href="Kristallsystem" title="Kristallsystem">Kristallsystem</a>
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<td>
<p>trigonal
</p>
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<td><a href="Raumgruppe" title="Raumgruppe">Raumgruppe</a>
</td>
<td>
<p><i>P</i>31<i>c</i> (Nr. 159)<span style="display:none;">Vorlage:Raumgruppe/159</span><span class="editoronly" style="display:none;"></span>
</p>
</td></tr>
<tr>
<td><a href="Gitterparameter" title="Gitterparameter">Gitterparameter</a>
</td>
<td>
<p><i>a</i> = 8,202 <a href="%C3%85ngstr%C3%B6m_(Einheit)" title="Ångström (Einheit)">Å</a>, <i>c</i> = 5,941 Å
</p>
</td></tr>


<tr>
<th colspan="2" style="background:#FFDEAD; color:#202122;">Allgemeines
</th></tr>
<tr>
<td style="width:33%;">Name
</td>
<td>Germaniumnitrid
</td></tr>
<tr>
<td>Andere Namen
</td>
<td>
<p>Germanium(IV)-nitrid
</p>
</td></tr>
<tr>
<td><a href="Verh%C3%A4ltnisformel" title="Verhältnisformel">Verhältnisformel</a>
</td>
<td>Ge<sub>3</sub>N<sub>4</sub>
</td></tr>
<tr>
<td>Kurzbeschreibung
</td>
<td>
<p>farbloser Feststoff<sup id="cite_ref-Sigma_1-0" class="reference"><a href="#cite_note-Sigma-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</p>
</td></tr>
<tr>
<th colspan="2" style="background:#FFDEAD; color:#202122;">Externe Identifikatoren/Datenbanken
</th></tr>
<tr>
<td colspan="2" style="padding:0;">
<table class="mw-collapsible mw-collapsed wikitable" data-expandtext="+" data-collapsetext="−" style="border-top:none; margin:-1px; width:calc(100% + 2px);">

<tbody><tr>
<td style="width:33%;"><a href="CAS-Nummer" title="CAS-Nummer">CAS-Nummer</a>
</td>
<td><span title="Untervorlage eingebunden: CASRN"></span><a rel="nofollow" class="external text" href="https://commonchemistry.cas.org/detail?cas_rn=12065-36-0">12065-36-0</a><span class="editoronly" style="display:none;"></span>
</td>
<td style="background:#FFDEAD; color:#202122; border-top:1px solid #FFDEAD; padding:0.2em 0; vertical-align:bottom; width:5%;">
</td></tr>
<tr>
<td><a href="EG-Nummer" title="EG-Nummer">EG-Nummer</a>
</td>
<td colspan="2">235-064-0
</td></tr>
<tr>
<td><a href="Europ%C3%A4ische_Chemikalienagentur" title="Europäische Chemikalienagentur">ECHA</a>-InfoCard
</td>
<td colspan="2"><a rel="nofollow" class="external text" href="https://www.echa.europa.eu/de/substance-information/-/substanceinfo/100.031.864">100.031.864</a>
</td></tr>
<tr>
<td><a href="PubChem" title="PubChem">PubChem</a>
</td>
<td colspan="2"><a rel="nofollow" class="external text" href="https://pubchem.ncbi.nlm.nih.gov/compound/16684757">16684757</a>
</td></tr>




<tr>
<td style="border-right:1px solid #a2a9b1;"><a href="Wikidata" title="Wikidata">Wikidata</a>
</td>
<td colspan="2"><a href="https://www.wikidata.org/wiki/Q4321613" class="extiw external" title="d:Q4321613">Q4321613</a>
</td></tr></tbody></table>
</td></tr>








<tr>
<th colspan="2" style="background:#FFDEAD; color:#202122;">Eigenschaften
</th></tr>
<tr>
<td><a href="Molare_Masse" title="Molare Masse">Molare Masse</a>
</td>
<td>273,95 g·<a href="Mol" title="Mol">mol</a><sup>−1</sup>
</td></tr>
<tr>
<td><a href="Aggregatzustand" title="Aggregatzustand">Aggregatzustand</a>
</td>
<td>
<p>fest<sup id="cite_ref-Sigma_1-1" class="reference"><a href="#cite_note-Sigma-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</p>
</td></tr>
<tr>
<td><a href="Dichte" title="Dichte">Dichte</a>
</td>
<td>
<p>5,35 g·cm<sup>−3</sup> (25 °C)<sup id="cite_ref-Sigma_1-2" class="reference"><a href="#cite_note-Sigma-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</p>
</td></tr>
<tr>
<td><a href="Schmelzpunkt" title="Schmelzpunkt">Schmelzpunkt</a>
</td>
<td>
<p>&gt;850 <a href="Grad_Celsius" title="Grad Celsius">°C</a> (Zersetzung)<sup id="cite_ref-Sigma_1-3" class="reference"><a href="#cite_note-Sigma-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</p>
</td></tr>














<tr>
<th colspan="2" style="background:#FFDEAD; color:#202122;">Sicherheitshinweise
</th></tr>


<tr>
<td colspan="2">
<table cellspacing="0" cellpadding="2" style="width:100%;">




<tbody><tr>
<td colspan="2" style="text-align:center"><b><a href="Global_harmonisiertes_System_zur_Einstufung_und_Kennzeichnung_von_Chemikalien" title="Global harmonisiertes System zur Einstufung und Kennzeichnung von Chemikalien">GHS-Gefahrstoffkennzeichnung</a></b><sup id="cite_ref-Sigma_1-4" class="reference"><a href="#cite_note-Sigma-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
<table class="hintergrundfarbe-neutral" style="text-align:center; margin-left:auto; margin-right:auto; display:flex; justify-content:center;">

<tbody><tr>
<td><span typeof="mw:File"><a href="Global_harmonisiertes_System_zur_Einstufung_und_Kennzeichnung_von_Chemikalien#Übersicht:_EU-Gefahrensymbole,_UN/GHS-Gefahrenpiktogramme,_UN/ADR-Gefahrensymbole" title="07 – Achtung"></a></span>
</td></tr></tbody></table>
<p><b>Achtung</b>
</p>
</td></tr>
<tr>
<td rowspan="2" width="33%" style="border-top:1px #A7A7A7 dashed; border-right:1px #A7A7A7 dashed;"><a href="H-_und_P-S%C3%A4tze" title="H- und P-Sätze">H- und P-Sätze</a>
</td>
<td style="border-top:1px #A7A7A7 dashed;">H: <span title="Untervorlage eingebunden: H-Sätze"></span><a href="H-_und_P-S%C3%A4tze#H-Sätze" title="H- und P-Sätze"><span style="display:inline-block;"><span style="color:#ff5400; border-bottom:1px dotted #ff5400;" title="Verursacht Hautreizungen.">315</span></span></a>​‐​<a href="H-_und_P-S%C3%A4tze#H-Sätze" title="H- und P-Sätze"><span style="display:inline-block;"><span style="color:#ff5400; border-bottom:1px dotted #ff5400;" title="Verursacht schwere Augenreizung.">319</span></span></a>​‐​<a href="H-_und_P-S%C3%A4tze#H-Sätze" title="H- und P-Sätze"><span style="display:inline-block;"><span style="color:#ff5400; border-bottom:1px dotted #ff5400;" title="Kann die Atemwege reizen.">335</span></span></a>
</td></tr>



<tr>
<td style="border-top:1px #A7A7A7 dashed;">P: <span title="Untervorlage eingebunden: P-Sätze"></span><a href="H-_und_P-S%C3%A4tze#P-Sätze" title="H- und P-Sätze"><span style="display:inline-block;"><span style="color:#ff5400; border-bottom:1px dotted #ff5400;" title="Einatmen von Staub / Rauch / Gas / Nebel / Dampf / Aerosol vermeiden.">261</span></span></a>​‐​<a href="H-_und_P-S%C3%A4tze#P-Sätze" title="H- und P-Sätze"><span style="display:inline-block;"><span style="color:#ff5400; border-bottom:1px dotted #ff5400;" title="Bei Kontakt mit den Augen: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.
(Geänderter Text seit Inkraftreten der „8. Anpassung an den Technischen Fortschritt“ am 1. Februar 2018)">305+351+338</span></span></a><sup id="cite_ref-Sigma_1-5" class="reference"><a href="#cite_note-Sigma-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td></tr>
</tbody></table>
</td></tr>












<tr>
<td colspan="2" style="background:#FFDEAD; color:#202122; font-size:80%; text-align:center; line-height:150%; padding:.25em;">Wenn nicht anders vermerkt, gelten die angegebenen Daten bei <a href="Standardbedingungen" title="Standardbedingungen">Standardbedingungen</a> (0 °C, 1000&nbsp;hPa).
</td></tr></tbody></table><p><span class="editoronly" style="display:none;"></span>
</p><p><b>Germaniumnitrid</b> (genauer Germanium(IV)-nitrid) ist eine anorganische <a href="Chemische_Verbindung" title="Chemische Verbindung">chemische Verbindung</a> des <a href="Germanium" title="Germanium">Germaniums</a> aus der Gruppe der <a href="Nitride" title="Nitride">Nitride</a>.
</p>
<div class="mw-heading mw-heading2"><h2 id="Gewinnung_und_Darstellung">Gewinnung und Darstellung</h2></div>
<p>Germaniumnitrid kann durch Reaktion von Germanium mit <a href="Ammoniak" title="Ammoniak">Ammoniak</a> bei 700 °C gewonnen werden.<sup id="cite_ref-brauer_2-0" class="reference"><a href="#cite_note-brauer-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</p>
<dl><dd><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {3Ge + 4NH3 -> Ge3N4 + 6H2}}}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
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<annotation encoding="application/x-tex">{\displaystyle {\ce {3Ge + 4NH3 -&gt; Ge3N4 + 6H2}}}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/edd5b9fc821ce92e0863b06fab8f4cf1dd635654.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:32.328ex; height:2.843ex;" alt="{\displaystyle {3\,\mathrm {Ge} {}+{}4\,\mathrm {NH} {\vphantom {A}}_{\smash[{t}]{3}}{}\mathrel {\longrightarrow } {}\mathrm {Ge} {\vphantom {A}}_{\smash[{t}]{3}}\mathrm {N} {\vphantom {A}}_{\smash[{t}]{4}}{}+{}6\,\mathrm {H} {\vphantom {A}}_{\smash[{t}]{2}}}}" loading="lazy"></span></dd></dl>
<p>Es kann auch durch thermische Zersetzung von Germanium(IV)-imid Ge(NH)<sub>2</sub> bei über 300 °C dargestellt werden.<sup id="cite_ref-brauer_2-1" class="reference"><a href="#cite_note-brauer-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="Eigenschaften">Eigenschaften</h2></div>
<p>Germaniumnitrid ist ein in reinem Zustand farbloser, äußerst inerter Feststoff. Er reagiert nicht mit heißen <a href="Minerals%C3%A4ure" class="mw-redirect" title="Mineralsäure">Mineralsäuren</a> oder Laugen. <a href="Wasserstoff" title="Wasserstoff">Wasserstoff</a> reduziert die Verbindung erst bei 700 °C zu Germanium, mit <a href="Chlor" title="Chlor">Chlor</a> reagiert sie bei 600 °C zu Germanium(IV)-chlorid und <a href="Stickstoff" title="Stickstoff">Stickstoff</a>.<sup id="cite_ref-brauer_2-2" class="reference"><a href="#cite_note-brauer-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Von Germaniumnitrid sind mehrere Modifikationen bekannt, wobei die <a href="Trigonales_Kristallsystem" title="Trigonales Kristallsystem">trigonale</a> β-Form (<a href="Raumgruppe" title="Raumgruppe">Raumgruppe</a> <i>P</i>31<i>c</i> (Raumgruppen-Nr. 159)<span style="display:none;">Vorlage:Raumgruppe/159</span><span class="editoronly" style="display:none;"></span>, Gitterparameter <i>a</i> = 8,202 <a href="%C3%85ngstr%C3%B6m_(Einheit)" title="Ångström (Einheit)">Å</a>, <i>c</i> = 5,941 Å)<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> die stabilste ist. Die Germaniumatome sind in der Struktur <a href="Tetraeder" title="Tetraeder">tetraedrisch</a> von Stickstoffatomen umgeben, die Stickstoffatome trigonal-planar von Germaniumatomen. Die unter Hochdruck entstehende γ-Form besitzt eine <a href="Spinell" title="Spinell">Spinellstruktur</a>.<sup id="cite_ref-DOI10.1002/jrs.1007_4-0" class="reference"><a href="#cite_note-DOI10.1002/jrs.1007-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>
<ol class="references">
<li id="cite_note-Sigma-1"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-Sigma_1-0">a</a></sup> <sup><a href="#cite_ref-Sigma_1-1">b</a></sup> <sup><a href="#cite_ref-Sigma_1-2">c</a></sup> <sup><a href="#cite_ref-Sigma_1-3">d</a></sup> <sup><a href="#cite_ref-Sigma_1-4">e</a></sup> <sup><a href="#cite_ref-Sigma_1-5">f</a></sup></span> <span class="reference-text">Datenblatt <span style="font-style:italic;"><a rel="nofollow" class="external text" href="https://www.sigmaaldrich.com/catalog/product/ALDRICH/447552">Germanium(III) nitride, ≥99.99% trace metals basis</a></span> bei <a href="Sigma-Aldrich" title="Sigma-Aldrich">Sigma-Aldrich</a>, abgerufen am 27.&nbsp;Januar 2014 (<a rel="nofollow" class="external text" href="https://www.sigmaaldrich.com/DE/de/sds/ALDRICH/447552?userType=anonymous">PDF</a>).<span class="editoronly" style="display:none;"></span></span>
</li>
<li id="cite_note-brauer-2"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-brauer_2-0">a</a></sup> <sup><a href="#cite_ref-brauer_2-1">b</a></sup> <sup><a href="#cite_ref-brauer_2-2">c</a></sup></span> <span class="reference-text"><a href="Georg_Brauer" title="Georg Brauer">Georg Brauer</a> (Hrsg.), unter Mitarbeit von <a href="Marianne_Baudler" title="Marianne Baudler">Marianne Baudler</a> u.&nbsp;a.: <i>Handbuch der Präparativen Anorganischen Chemie.</i> 3., umgearbeitete Auflage. Band I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6, S. 738.</span>
</li>
<li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text">S.N. Ruddlesden, P. Popper: <i>On the Crystal Structures of the Nitrides of Silicon and Germanium.</i> In: <i><a href="Acta_Crystallographica" title="Acta Crystallographica">Acta Crystallographica</a></i>, 11, 1958, S.&nbsp;465–468, <a href="https://doi.org/10.1107/S0365110X58001304" class="extiw external" title="doi:10.1107/S0365110X58001304">doi:10.1107/S0365110X58001304</a>.</span>
</li>
<li id="cite_note-DOI10.1002/jrs.1007-4"><span class="mw-cite-backlink"><a href="#cite_ref-DOI10.1002/jrs.1007_4-0">↑</a></span> <span class="reference-text">Paul F. McMillan, Sudip K. Deb, Jian-Jung Dong: <i>High-pressure metastable phase transitions in β-Ge<sub>3</sub>N<sub>4</sub> studied by Raman spectroscopy.</i> In: <i>Journal of Raman Spectroscopy.</i> 34, 2003, S.&nbsp;567–577, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1002/jrs.1007">10.1002/jrs.1007</a></span>.</span>
</li>
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