Species
R2C.+
having one non-bonding electron, formally derived by subtraction of an electron from
a
carbene, e.g.
H2C.+
methyliumyl.
Source:
PAC, 1995, 67, 1307
(Glossary of class names of organic compounds and reactivity intermediates based on
structure (IUPAC Recommendations 1995))
on page 1324