Nitrogen tribromide

Nitrogen tribromide
IUPAC name nitrogen tribromide
Identifiers
CAS number	15162-90-0
PubChem	3082084
ChemSpider	20480821
Jmol-3D images	Image 1
SMILES N(Br)(Br)Br
InChI InChI=InChI=1S/3BrH.N/h3*1H;/p-3
Properties
Molecular formula	Br3N
Molar mass	253.72 g mol−1
Appearance	unstable solid
Melting point	explodes at -100°C[1]
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Nitrogen tribromide is a chemical compound with the formula NBr₃. It is extremely explosive in its pure form, even at −100°C, and was not isolated until 1975.^[2] It is a deep-red, volatile solid, and was first prepared by the bromination of bistrimethlysilylbromamine with BrCl at −87°C:

(Me₃Si)₂NBr + 2 BrCl → NBr₃ + 2 Me₃SiCl

It reacts instantly with ammonia in dichloromethane solution at −87°C to yield NBrH₂.

References

1. ^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 4–73, ISBN 0-8493-0594-2 
2. ^ N. N. Greenwood and A. Earnshaw, "Chemistry of the Elements", 2006 Butterworth-Heinemann