Fluoromethylidyne
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Fluoromethylidyne
Names
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
- 3889-75-6 checkY
3D model (JSmol)
ChemSpider
- 10605706 checkY
- InChI=1S/CF/c1-2 checkYKey: ISOSXCFSIDVNNC-UHFFFAOYSA-N checkY
- [C]F
Properties
CF•
Molar mass
31.0091 g mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Chemical compound
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
[edit ]References
[edit ]- ^ F. J. Grieman; A. T. Droege; 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.
- ^ 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 (8): 2489–2490. doi:10.1021/ja00346a072.
- ^ J. Peeters; J. Van Hoeymissen; S. Vanhaelemeersch; 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.
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