<p><b>二硒化鍺</b>是一種無機化合物，化學式為GeSe<sub>2</sub>。它可由鍺和硒按化學計量比反應，或硒化氫和四氯化鍺反應得到：</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\mathsf {Ge+2Se\ \xrightarrow {\ } GeSe_{2}}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\mathsf {Ge+2Se\ \xrightarrow {\ } GeSe_{2}}}}</annotation>
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<dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\mathsf {GeCl_{4}+2H_{2}Se\ \xrightarrow {\ } GeSe_{2}+4HCl}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\mathsf {GeCl_{4}+2H_{2}Se\ \xrightarrow {\ } GeSe_{2}+4HCl}}}</annotation>
  </semantics></math></span></span></dd></dl><p>它和硒、聯氨反應，可以得到黃色的(N<sub>2</sub>H<sub>5</sub>)<sub>4</sub>Ge<sub>2</sub>Se<sub>6</sub>。</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\mathsf {2GeSe_{2}+2Se+5N_{2}H_{4}\ \xrightarrow {\ } (N_{2}H_{5})_{4}Ge_{2}Se_{6}+N_{2}}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\mathsf {2GeSe_{2}+2Se+5N_{2}H_{4}\ \xrightarrow {\ } (N_{2}H_{5})_{4}Ge_{2}Se_{6}+N_{2}}}}</annotation>
  </semantics></math></span></span></dd></dl><p>它和硒化鉛、硒化鎵在高溫反應，可以得到PbGa<sub>2</sub>GeSe<sub>6</sub>。</p>
<h2><span id=".E5.8F.82.E8.80.83.E6.96.87.E7.8C.AE"></span><span id="参考文献">參考文獻</span></h2>

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**二硒化鍺**是一種無機化合物，化學式為 GeSe2。它可由鍺和硒按化學計量比反應，或硒化氫和四氯化鍺反應得到：

　
: ${\mathsf {Ge+2Se\ \xrightarrow {\ } GeSe_{2}}}$

　
: ${\mathsf {GeCl_{4}+2H_{2}Se\ \xrightarrow {\ } GeSe_{2}+4HCl}}$

它和硒、聯氨反應，可以得到黃色的 (N2H5)4Ge2Se6。

　
: ${\mathsf {2GeSe_{2}+2Se+5N_{2}H_{4}\ \xrightarrow {\ } (N_{2}H_{5})_{4}Ge_{2}Se_{6}+N_{2}}}$

它和硒化鉛、硒化鎵在高溫反應，可以得到 PbGa2GeSe6。

## 參考文獻
12065-11-1