Univalent groups containing carbon, which are thus organic, but which have their free
valence at an atom other than carbon. This collective term is seldom used; specific subclasses are more frequently encountered (organothio or organylthio, organogermanium or organylgermanium groups). The synonymous term organoelement groups is occasionally encountered. E.g. phenoxy, acetamido, pyridinio
(
C5H5N+),
thiocyanato
(
N≡C–S−), trimethylsilyl; but not hydroxyphenyl, aminoacetyl.
Source:
PAC, 1995, 67, 1307
(Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995))
on page 1353