IUPAC > Gold Book > alphabetical index > H > homoconjugation



  1. [obsolete] Association between a base and its conjugate acid through a hydrogen bond (B ... HB+ or AH ... A). Homoassociation is a more appropriate term for this phenomenon.
  2. The orbital overlap of two π-systems separated by a non-conjugating group, such as CH2.
PAC, 1994, 66, 1077 (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1121
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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.
Last update: 2014-02-24; version: 2.3.3.
DOI of this term: doi:10.1351/goldbook.H02842.
Original PDF version: http://www.iupac.org/goldbook/H02842.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.
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