Nitrogen tribromide

Nitrogen tribromide

100px Nitrogen tribromide molecule
Names
IUPAC name nitrogen tribromide
Identifiers
CAS Number	15162-90-0
ChemSpider	20480821
Jmol 3D model	Interactive image
PubChem	3082084
InChI InChI=1S/3BrH.N/h3*1H;/p-3
SMILES N(Br)(Br)Br
Properties
Chemical formula	Br3N
Molar mass	253.7187 g/mol
Appearance	Deep red solid
Melting point	Explodes at -100 °C
Vapor pressure	{{{value}}}
Except where otherwise noted, data are 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. It is a deep-red and volatile solid.

Preparation

NBr₃ 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.