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IUPAC name
Beryllium azide
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| Identifiers | |
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3D model (JSmol)
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PubChem CID
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| Properties | |
| Be(N3)2 | |
| Molar mass | 93.054 g·mol−1 |
| Appearance | white solid |
| Hazards | |
| NIOSH (US health exposure limits): | |
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PEL (Permissible)
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TWA 0.002 mg/m3 C 0.005 mg/m3 (30 minutes), with a maximum peak of 0.025 mg/m3 (as Be) |
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REL (Recommended)
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Ca C 0.0005 mg/m3 (as Be) |
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IDLH (Immediate danger)
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Ca [4 mg/m3 (as Be)] |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Beryllium azide, Be(N3)2, is an inorganic compound. It is a beryllium salt of hydrazoic acid HN3.
Synthesis
Beryllium azide has been synthesised by the reaction of beryllium chloride with neat trimethylsilyl azide:
- BeCl2 + 2 Me3SiN3 → Be(N3)2 + 2 Me3SiCl
Alternatively, dimethylberyllium reacts with hydrazoic acid in dry diethyl ether at −116 °C:
- Be(CH3)2 + 2 HN3 → Be(N3)2 + 2 CH4
Structure
IR and Raman spectra suggest that beryllium azide consists of infinite chains, with tetrahedrally coordinated Be2+ ions linked by end-on bridging N−3 ions.