Crystallographic Information Framework

[CIF logo]


Core dictionary (coreCIF) version 2.4.5




   A code which identifies a cluster of atoms that show long-range
   positional disorder but are locally ordered. Within each such
   cluster of atoms, _atom_site_disorder_group is used to identify
   the sites that are simultaneously occupied. This field is only
   needed if there is more than one cluster of disordered atoms
   showing independent local order.


A disordered methyl assembly with groups 1 and 2
B disordered sites related by a mirror
S disordered sites independent of symmetry

Appears in list containing _atom_site_label

Type: char

Category: atom_site