<p><b>疊氮化𨥙</b>，又稱<b>疊氮化肼</b>，化學式<span>H<span><br>5</span>N<span><br>5</span></span> 或<span>[N<span><br>2</span>H<span>+<br>5</span>][N<span>−<br>3</span>]</span>。它是𨥙陽離子的疊氮化物，為不穩定固體。
</p><p>由於其高氮含量和爆炸性，該化合物具有科學意義。</p>


<h2><span id=".E7.BB.93.E6.9E.84"></span><span id="结构">結構</span></h2>
<p>在 13 GPa下，疊氮化𨥙的晶體結構會變化。</p>
<h2><span id=".E5.8C.96.E5.AD.A6.E6.80.A7.E8.B4.A8"></span><span id="化学性质">化學性質</span></h2>
<p>疊氮化𨥙爆炸性分解成肼、氨和氮氣：</p>
<dl><dd>12 <span>N<span><br>5</span>H<span><br>5</span></span> → 3 <span>N<span><br>2</span>H<span><br>4</span></span> + 16 <span>NH<span><br>3</span></span> + 19 <span>N<span><br>2</span></span></dd></dl><p>它和等當量的肼結晶，形成肼合疊氮化𨥙 <span>[N<span><br>2</span>H<span>+<br>5</span>]</span><span>[N<span>−<br>3</span>]</span>·<span>[N<span><br>2</span>H<span><br>4</span>]</span>或 <span>N<span><br>7</span>H<span><br>9</span></span>，為單斜晶系。它的潮解性和揮發性比純疊氮化𨥙低。它爆炸性分解成氮氣、氫氣和氨。</p><p>在 40GPa以上時，疊氮化𨥙分解成一種線形的氮的同素異形體 <span>N<span><br>8</span></span>，結構為 N≡<span><span><span>+</span><span>N</span></span></span>−<span><span><span>−</span><span>N</span></span></span>−N=N−<span><span><span>−</span><span>N</span></span></span>−<span><span><span>+</span><span>N</span></span></span>≡N。這種同素異形體在 25GPa以下分解成 <span data-orig-title="ε-N2" data-lang-code="en" data-lang-name="英語" data-foreign-title="ε-N2"><span>ε-N<sub>2</sub></span></span>。</p><p>它和硫酸反應，形成純硫酸肼和疊氮酸。</p>
<dl><dd>[<span>N<span><br>2</span>H<span>+<br>5</span></span>][<span>N<span>−<br>3</span></span>] + H<sub>2</sub>SO<sub>4</sub>  →  [<span>N<span><br>2</span>H<span>2+<br>6</span></span>][<span>SO<span>2−<br>4</span></span>] + HN<sub>3</sub></dd></dl><h2><span id=".E5.8F.82.E8.A7.81"></span><span id="参见">參見</span></h2>
<ul><li>疊氮化銨 <span>[NH<span>+<br>4</span>][N<span>−<br>3</span>]</span></li></ul><h2><span id=".E5.8F.82.E8.80.83.E8.B5.84.E6.96.99"></span><span id="参考资料">參考資料</span></h2>

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**疊氮化𨥙**，又稱**疊氮化肼**，化學式 H 
5N 
5 或[N 
2H+ 
5][N− 
3]。它是𨥙陽離子的疊氮化物，為不穩定固體。

由於其高氮含量和爆炸性，該化合物具有科學意義。

## 結構

在 13 GPa 下，疊氮化𨥙的晶體結構會變化。

## 化學性質

疊氮化𨥙爆炸性分解成肼、氨和氮氣：

　
: 12 N 
5H 
5 → 3 N 
2H 
4 + 16 NH 
3 + 19 N 
2

它和等當量的肼結晶，形成肼合疊氮化𨥙 [N 
2H+ 
5][N− 
3]·[N 
2H 
4]或 N 
7H 
9，為單斜晶系。它的潮解性和揮發性比純疊氮化𨥙低。它爆炸性分解成氮氣、氫氣和氨。

在 40GPa 以上時，疊氮化𨥙分解成一種線形的氮的同素異形體 N 
8，結構為 N≡+N−−N−N=N−−N−+N≡N。這種同素異形體在 25GPa 以下分解成 ε-N2。

它和硫酸反應，形成純硫酸肼和疊氮酸。

　
: [N 
2H+ 
5][N− 
3] + H2SO4 → [N 
2H2+ 
6][SO2− 
4] + HN3

## 參見

* 疊氮化銨 [NH+ 
4][N− 
3]

## 參考資料
14662-04-5