Intramolecularstrain present due to
nonbonded interactions between two
eclipsed atoms or groups. It is, for example, one of the interactions responsible for the
existence of a
rotational barrier and hence
restricted rotation about the
C–C
bond in ethane. It has also been called Pitzer strain, torsional strain and bond opposition
strain.
Source:
PAC, 1996, 68, 2193
(Basic terminology of stereochemistry (IUPAC Recommendations 1996))
on page 2206
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.
https://doi.org/10.1351/goldbook.
