Also contains definition of: topomers
The @[email protected] leading to exchange of the positions of identical @[email protected] The indistinguishable molecular entities involved are called topomers. For example in the reaction below the two identical ligating atoms Na and Nb are interchanged by rotation about the C-aryl bond but may be identified by NMR @[email protected] This is a degenerate @[email protected]
PAC, 1996, 68, 2193. (Basic terminology of stereochemistry (IUPAC Recommendations 1996)) on page 2220 [Terms] [Paper]