Fluoromethylidyne

From Wikipedia, the free encyclopedia
Fluoromethylidyne
IUPAC name

  • Fluoromethylidyne (substitutive)[citation needed]
  • Fluoridocarbon(•) (additive)[citation needed]

Other names

  • Carbon(I) fluoride[citation needed]
  • Carbon monofluoride[citation needed]
  • Fluorocarbyne[citation needed]
  • Fluoromethylyne[citation needed]

Identifiers
CAS number 3889-75-6 YesY
ChemSpider 10605706 YesY
Jmol-3D images {{#if:[C]=[F]|Image 1
Properties
Molecular formula CF•
Molar mass 31.0091 g mol-1
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Fluoromethylidyne is not a stable chemical species but a metastable radical containing one highly reactive carbon atom bound to one fluorine atom with the formula CF.[1] The carbon atom has a lone-pair and a single unpaired (radical) electron in the ground state.[2]

Ground-state fluoromethylidyne radicals can be produced by the ultraviolet photodissociation of dibromodifluoromethane at 248 nanometer wavelength.[3]

It readily and irreversibly dimerises to difluoroacetylene, also known as difluoroethyne, perfluoroacetylene, or di- or perfluoroethylyne. Under certain conditions it can hexamerise to hexafluorobenzene.

See also

References

  1. ↑ F. J. Grieman, A. T. Droege, and P. C. Engelking (March 1983). "The a4Σ––X2Π transition in CF: A measurement of the term energy and bond length of a fluoromethylidyne metastable". Journal of Chemical Physics 78 (5): 2248–2254. doi:10.1063/1.445070. 
  2. ↑ Ruzsicska, B. P.; Jodhan, A.; Choi; H. K. J., Strausz, O. P.; Bell, T. N. (1983). "Chemistry of carbynes: reaction of CF, CCl, and CBr with alkenes". J. Am. Chem. Soc. 105: 2489–2490. doi:10.1021/ja00346a072. 
  3. ↑ J. Peeters, J. Van Hoeymissen, S. Vanhaelemeersch, and D. Vermeylen (February 1992). "Absolute rate constant measurements of CF(X2Π) reactions. 1. Reactions with O2, F2, Cl2 and NO". Journal of Physical Chemistry 96 (3): 1257–1263. doi:10.1021/j100182a043. 
This article is issued from Wikipedia. The text is available under the Creative Commons Attribution/Share Alike; additional terms may apply for the media files.