Crystallographic Information Framework

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Core dictionary version 3.0.14

_atom_site.disorder_group

Name:
_atom_site.disorder_group

Alias:
_atom_site_disorder_group

Definition:

   
     A code that identifies a group of positionally disordered atom
     sites that are locally simultaneously occupied. Atoms that are
     positionally disordered over two or more sites (e.g. the H
     atoms of a methyl group that exists in two orientations) can
     be assigned to two or more groups. Sites belonging to the same
     group are simultaneously occupied, but those belonging to
     different groups are not. A minus prefix (e.g. "-1") is used to
     indicate sites disordered about a special position.

Examples:

1 unique disordered site in group 1
2 unique disordered site in group 2
-1 symmetry-independent disordered site

Type: Code

Category:
atom_site