Nitrosyl bromide

Nitrosyl bromide
Ball and stick model of nitrosyl bromide	Spacefill model of nitrosyl bromide
Identifiers
CAS Number	13444-87-6 ;
3D model (JSmol)	Interactive image;
ChemSpider	109908 ;
PubChem CID	123304;
CompTox Dashboard (EPA)	DTXSID90158701 ;
	InChI InChI=1S/BrNO/c1-2-3 Key: BMNDJWSIKZECMH-UHFFFAOYSA-N ;
	SMILES BrN=O;
Properties
Chemical formula	NOBr
Molar mass	109.910 g/mol
Appearance	Red gas
Boiling point	14.5 °C (58.1 °F; 287.6 K)
Refractive index (nD)	1.524
Related compounds
Related compounds	Nitroxyl; Nitrosyl fluoride; Nitrosyl chloride;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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

^ ^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.
^ 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.

[os-1] 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.

[1]

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