[obsolete] [obsolete]Association between a base and the conjugate acid of a different base through a hydrogen bond (B'
... HB+
or
A'H
... A−).
The term has its origin in the conjugate acid–base pair and is in no way related to conjugation of orbitals Heteroassociation is a more appropriate term.
[obsolete] [obsolete]
Some authors refer to conjugated systems containing a heteroatom, e.g. pyridine, as 'heteroconjugated systems'. This usage is discouraged since it inappropriately suggests an analogy to
homoconjugation,
and conflicts with the currently accepted definition of that term.
Source:
PAC, 1994, 66, 1077
(Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994))
on page 1120
Transformed and rewritten from PDF version (entry
http://www.iupac.org/goldbook/H02796.pdf)
by: Miloslav Nic, Jiri Jirat, Bedrich Kosata, ICT Prague, Czech Republic
