Crystallographic Information Framework

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Index

Macromolecular dictionary (mmCIF) version 2.0.09

_struct_ncs_ens.point_group

Name:
'_struct_ncs_ens.point_group'

Definition:

   The point group of the ensemble of structural elements related by
   one or more noncrystallographic symmetry operations. The
   relationships need not be precise; this data item is intended
   to give a rough description of the noncrystallographic symmetry
   relationships.

Examples:

3
422
non-proper

Type: line

Mandatory item: no

Category: struct_ncs_ens


International Tables for Crystallography

Volume G: Definition and exchange of crystallographic data

First online edition (2006)

Edited by S. R. Hall and B. McMahon

An essential guide and reference to CIF for programmers, data managers handling crystal-structure information and practising crystallographers.