## angle strain

https://doi.org/10.1351/goldbook.A00349
@[email protected] due to a departure in bond @[email protected] from 'normal' values. The term is often used in the context of non-aromatic cyclic compounds in which the internal angles differ from the regular tetrahedral @[email protected] of $$109^{\,\unicode{x26ac}}\,28^{\prime }$$; in this sense @[email protected] @[email protected] is also known as @[email protected]
Source:
PAC, 1996, 68, 2193. (Basic terminology of stereochemistry (IUPAC Recommendations 1996)) on page 2198 [Terms] [Paper]