The three-coordinate carbon atom in a
carbenium ion to which the excess positive charge of the ion (other than that located on heteroatoms)
may be formally considered to be largely attributed, i.e. which has one vacant p-
orbital. (N.B. It is not always possible to uniquely identify such an atom.) This formal
attribution of charge often does not express the real charge distribution.
Source:
PAC, 1994, 66, 1077
(Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994))
on page 1092
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.