The electrically neutral species
H2C:
and its derivatives, in which the carbon is covalently bonded to two univalent groups
of any kind or a divalent group and bears two nonbonding electrons, which may be spin-paired
(
singlet state) or spin-non-paired (
triplet state). In
systematic name formation, carbene is the name of the
parent hydride:CH2
hence, the name dichlorocarbene for
:CCl2.
However, names for acyclic and cyclic
hydrocarbons containing one or more divalent carbon atoms are derived from the name of the corresponding
all-
-hydrocarbon using the suffix -ylidene. E.g. prop-2-en-1-ylidene,
H2C=CHCH:
ethenylidene,
H2C=C:;
cyclohexylidene,
Source:
PAC, 1995, 67, 1307
(Glossary of class names of organic compounds and reactivity intermediates based on
structure (IUPAC Recommendations 1995))
on page 1324
See also:
PAC, 1994, 66, 1077
(Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994))
on page 1092
InChI=1/C6H11/c1-2-4-6-5-3-1/h1H,2-6H2
YUDRVAHLXDBKSR-UHFFFAOYAW
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
