Index

Core dictionary version 3.3.0

_atom_site.disorder_group

Definition:

   
    A code which 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 hydrogen
    atoms of a methyl group that exists in two orientations) should be
    assigned to two or more groups. Similarly, atoms that describe a
    specific alternative composition of a compositionally disordered
    site should be assigned to a distinct disorder group (e.g. a site
    that is partially occupied by Mg and Mn atoms should be described
    by assigning the Mg atom to one group and the Mn atom to another
    group). 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.

Type: Word

Category:
atom_site