Preferred Label : enantiotopic;
IUPAC definition : Constitutionally identical atoms or groups in molecules which are related by symmetry
elements of the second kind only (mirror plane, inversion centre or rotation–reflection
axis). For example the two groups strong c /strong in a grouping strong Cabcc /strong
are enantiotopic. Replacement of one of a pair of enantiotopic groups forms one of
a pair of enantiomers. Analogously, if complexation or addition to one of the two
faces defined by a double bond or other molecular plane gives rise to a chiral species,
the two faces are called enantiotopic.;
Origin ID : E02083;
See also
Constitutionally identical atoms or groups in molecules which are related by symmetry
elements of the second kind only (mirror plane, inversion centre or rotation–reflection
axis). For example the two groups strong c /strong in a grouping strong Cabcc /strong
are enantiotopic. Replacement of one of a pair of enantiotopic groups forms one of
a pair of enantiomers. Analogously, if complexation or addition to one of the two
faces defined by a double bond or other molecular plane gives rise to a chiral species,
the two faces are called enantiotopic.
