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IUPAC - homotopic (H02857)

homotopic

https://doi.org/10.1351/goldbook.H02857
Atoms or groups of a molecule which are related by an n-fold rotation axis (n = 2, 3, etc.) are called homotopic. For example, @C01057@ tartaric acid (\(C_{2}\) axis), chloroform (\(C_{3}\) axis) and cyclohexaamylose (α-cyclodextrin, \(C_{6}\) axis) have respectively two homotopic carboxyl groups, three homotopic chlorine atoms and six homotopic d-glucose residues.
See:
prochirality
Source:
PAC, 1996, 68, 2193. (Basic terminology of stereochemistry (IUPAC Recommendations 1996)) on page 2210 [Terms] [Paper]