Fig. 13. A visual representation of why the structures in the bifurcation IRC following the point where the paths split have distinguishable interatomic distance matrices. In this IRC, enantiomers 1 and 2 are related by a 180° torsion about the C1–C3 axis. Though enantiomers 1 and 2 would be considered enantiomers based on atom identities, they are not enantiomers when atom numbering is taken into account due to the numbering of the atoms on the methyl groups.
