Beryllium azide
| Names | |
|---|---|
| IUPAC name
Beryllium azide | |
| Identifiers | |
44606-75-9  | |
| Properties | |
| BeN6 | |
| Molar mass | 93.05 g·mol−1 |
| Appearance | white solid[1] |
| Hazards | |
| US health exposure limits (NIOSH): | |
| PEL (Permissible) |
TWA 0.002 mg/m3 C 0.005 mg/m3 (30 minutes), with a maximum peak of 0.025 mg/m3 (as Be)[2] |
| REL (Recommended) |
Ca C 0.0005 mg/m3 (as Be)[2] |
| IDLH (Immediate danger) |
Ca [4 mg/m3 (as Be)][2] |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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| Infobox references | |
Not to be confused with beryllium nitride, Be3N2.
Beryllium azide, Be(N3)2, is an inorganic compound.
Synthesis
Beryllium azide has been synthesised by the reaction of beryllium chloride with neat trimethylsilyl azide:[3]
- BeCl2 + 2Me3SiN3 → Be(N3)2 + 2Me3SiCl
Alternatively, dimethylberyllium reacts with hydrazoic acid in dry diethyl ether at −116 °C:[1]
- Be(CH3)2 + 2HN3 → Be(N3)2 + 2CH4
Structure
Beryllium azide is predicted to consist of infinite chains, with tetrahedrally coordinated Be2+ ions linked by end-on bridging N3− ions.[3]
References
- 1 2 Wiberg, E.; Horst, M. (1954). "Beryllium azide, Be(N3)2". Zeitschrift für Naturforschung B. 9: 502.
- 1 2 3 "NIOSH Pocket Guide to Chemical Hazards #0054". National Institute for Occupational Safety and Health (NIOSH).
- 1 2 Klapötke, T. M.; Schutt, T. (1999). "Synthesis and spectroscopic characterization of beryllium azide and two derivatives". Main Group Metal Chemistry. 22 (6): 357–360.
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