https://doi.org/10.1351/goldbook.C00804
Generic name for anions containing an even number of electrons and having an unshared pair of electrons on a tervalent carbon atom (e.g. Cl3C or HC≡C ) or — if the ion is mesomeric (see
mesomerism
) — having at least one significant
contributing structure
with an unshared pair of electrons on a tervalent carbon atom, for example:
See also:
radical ion
Source:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1092 [Terms] [Paper]
See also:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1324 [Terms] [Paper]