https://doi.org/10.1351/goldbook.E01886
@[email protected] @[email protected] present due to @[email protected] between two @[email protected] atoms or groups. It is, for example, one of the interactions responsible for the existence of a @[email protected] and hence @[email protected] about the C–C bond in ethane. It has also been called Pitzer strain, torsional strain and bond opposition strain.