Nitrogen tribromide

Nitrogen tribromide
Nitrogen tribromide molecule
Names
IUPAC name
nitrogen tribromide
Identifiers
15162-90-0
ChemSpider 20480821
Jmol-3D images Image
PubChem 3082084
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 is given for materials in their standard state (at 25 °C (77 °F), 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 Me
3SiCl

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