A single heteroatom, for example,
–Cl
and
=O; a heteroatom bearing one or more hydrogen atoms or other heteroatoms, for example,
–NH2,
–OH,
–SO3H,
–PO3H2
and
IO2
; or a heteroatomic group attached to or containing a single carbon atom, for example,
–CHO,
–C≡N,
–COOH
and
–NCO
, attached to a
parent hydride.
Source:
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.
doi:10.1351/goldbook.
