Bent's rule

https://doi.org/10.1351/goldbook.BT07000
In a molecule, smaller bond angles are formed between electronegative @[email protected] since the @[email protected], to which the @[email protected] are attached, tends to direct bonding hybrid orbitals of greater p character towards its more electronegative substituents.
Source:
PAC, 1999, 71, 1919. (Glossary of terms used in theoretical organic chemistry) on page 1926 [Terms] [Paper]
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). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014