Nitrosyl bromide

Nitrosyl bromide
Skeletal formula of nitrosyl bromide with measurements
Ball and stick model of nitrosyl bromide
Ball and stick model of nitrosyl bromide
Spacefill model of nitrosyl bromide
Spacefill model of nitrosyl bromide
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/BrNO/c1-2-3 checkY
    Key: BMNDJWSIKZECMH-UHFFFAOYSA-N checkY
  • BrN=O
Properties
NOBr
Molar mass 109.910 g/mol
Appearance Red gas
Boiling point 14.5 °C (58.1 °F; 287.6 K)
1.524
Related compounds
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Nitrosyl bromide is the chemical compound with the chemical formula NOBr. It is a red gas with a condensing point just below room temperature.[1] It reacts with water.[1]

Nitrosyl bromide can be formed by the reversible reaction of nitric oxide with bromine.[2] This reaction is of interest as it is one of very few third-order homogeneous gas reactions. NOBr is prone to photodissociation at standard pressure and temperature.

2 NO + Br2 ⇌ 2 NOBr

Another way to make it is by way of nitric oxide reacting with potassium bromide.[1]

2NO2 + KBr → BrNO + KNO3
  1. ^ a b c Ratcliffe, Charles T.; Shreeve, Jean'ne M.; Wynne, Kenneth J. (January 1968). "Nitrosyl Halides". Inorganic Syntheses. Vol. 11. pp. 194–200. doi:10.1002/9780470132425.ch39. ISBN 9780470131701.
  2. ^ Esposti, C.D.; Tamassia, F.; Cazzoli, G.; Kisiel, Z. (April 1995). "Millimeter-Wave Spectrum of Nitrosyl Bromide in the Low-Lying Excited States: Equilibrium Structure and Cubic Force Field". Journal of Molecular Spectroscopy. 170 (2): 582–600. Bibcode:1995JMoSp.170..582E. doi:10.1006/jmsp.1995.1093.