Trifluoronitrosomethane

Trifluoronitrosomethane (commonly abbreviated TFNM) is a toxic organic compound consisting of a trifluoromethyl group covalently bound to a nitroso group. Its distinctive deep blue color is unusual for a gas.

Trifluoronitrosomethane

Skeletal formula of trifluoronitrosomethane Space-filling model of trifluoronitrosomethane
Names
Preferred IUPAC name Trifluoro(nitroso)methane
Other names Trifluoro-nitrosomethane Trifluoro-nitroso-methane Nitrosotrifluoromethane
Identifiers
CAS Number	334-99-6 Y
Abbreviations	TFNM
ChemSpider	60949 Y
ECHA InfoCard	100.005.804
EC Number	206-383-2
PubChem CID	67630
UNII	M9H4YRQ7XZ Y
CompTox Dashboard (EPA)	DTXSID3073896
InChI InChI=1S/CF3NO/c2-1(3,4)5-6 Key: PGOMVYSURVZIIW-UHFFFAOYSA-N
Properties
Chemical formula	CF3NO
Molar mass	99.012 g·mol−1
Appearance	Deep blue gas[1] Purple solid
Melting point	−196.6 °C (−321.9 °F; 76.5 K)
Boiling point	−85 °C (−121 °F; 188 K)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	Toxic
NFPA 704 (fire diamond)	3 1 0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

History

Trifluoronitrosomethane was synthesized for the first time in 1936 by Otto Ruff and Manfred Giese at the Schlesische Friedrich-Wilhelms-Universität zu Breslau.^[2] It was created through the fluorination of silver cyanide in the presence of silver nitrate and silver oxide.

Production

Trifluoronitrosomethane can be produced from the reaction of trifluoroiodomethane and nitric oxide under a UV light with a yield of up to 90% in normal pressure. A small amount of mercury is needed as catalyst. The reaction results in the creation of iodine as a by-product.^[3][4][5]

Properties

Although it is somewhat more kinetically stable due to its fluorine substituents, trifluoronitrosomethane, like other nitroso compounds, has a weak C–N bond of only 39.9 kcal/mol.^[6]

Related

Trifluoronitrosoethylene is also a similar deep blue gas.^[7]

See also

• Trichloronitrosomethane