Carbenes, derived by formal
insertion of a divalent carbon atom into an even-membered
annulene, e.g. cycloheptatrienylidene:
Source: PAC, 1995,
67, 1307. (
Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1318 [
Terms] [
Paper]