Beryllium azide

Beryllium azide
Names
	IUPAC name Beryllium azide
Identifiers
CAS Number	44606-75-9 ;
3D model (JSmol)	Interactive image;
PubChem CID	129631211;
	InChI InChI=1S/Be.2N3/c;21-3-2/q+2;2-1 Key: FGTDFEYQGIRFTE-UHFFFAOYSA-N;
	SMILES [Be+2].[N-]=[N+]=[N-].[N-]=[N+]=[N-];
Properties
Chemical formula	BeN6
Molar mass	93.054 g·mol−1
Appearance	white solid
Hazards
	NIOSH (US health exposure limits):
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)
REL (Recommended)	Ca C 0.0005 mg/m3 (as Be)
IDLH (Immediate danger)	Ca [4 mg/m3 (as Be)]
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	(what is ?)
	Infobox references

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[]

IR and Raman spectra suggest that beryllium azide consists of infinite chains, with tetrahedrally coordinated Be²⁺ ions linked by end-on bridging N₃⁻ ions.^[3]

References[]

^ ^a ^b Wiberg, E.; Horst, M. (1954). "Beryllium azide, Be(N₃)₂". Zeitschrift für Naturforschung B. 9: 502.
^ ^a ^b ^c NIOSH Pocket Guide to Chemical Hazards. "#0054". National Institute for Occupational Safety and Health (NIOSH).
^ ^a ^b Klapötke, T. M.; Schutt, T. (1999). "Synthesis and spectroscopic characterization of beryllium azide and two derivatives". Main Group Metal Chemistry. 22 (6): 357–360. doi:10.1515/MGMC.1999.22.6.357. S2CID 101174968.

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[Wiberg-1] Wiberg, E.; Horst, M. (1954). "Beryllium azide, Be(N₃)₂". Zeitschrift für Naturforschung B. 9: 502.

[PGCH-2] NIOSH Pocket Guide to Chemical Hazards. "#0054". National Institute for Occupational Safety and Health (NIOSH).

[Klapötke-3] Klapötke, T. M.; Schutt, T. (1999). "Synthesis and spectroscopic characterization of beryllium azide and two derivatives". Main Group Metal Chemistry. 22 (6): 357–360. doi:10.1515/MGMC.1999.22.6.357. S2CID 101174968.

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