polytopal rearrangement
Stereoisomerization interconverting different or equivalent spatial arrangements of
ligands
about a
central atom
or of a
cage
of atoms, where the ligand or
cage
defines the vertices of a polyhedron. For example
pyramidal inversion
of
amines
,
Berry pseudorotation
of
PF
5
, rearrangements of polyhedral
boranes
.
Source:
PAC, 1996,
68
, 2193
(Basic terminology of stereochemistry (IUPAC Recommendations 1996))
on page 2213