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International
Tables for Crystallography Volume G Definition and exchange of crystallographic data Edited by J. R. Hester and B. McMahon © International Union of Crystallography 2026 |
International Tables for Crystallography (2026). Vol. G. Early view chapter
https://doi.org/10.1107/97809553602060001011 Chapter 4.2 Core dictionary (coreCIF) |
Core dictionary version 3.3.0
_space_group_symop.id
Name:_space_group_symop.id
Aliases:
_space_group_symop_id
_symmetry_equiv.pos_site_id
_symmetry_equiv_pos_site_id
Definition:
Index identifying each entry in the _space_group_symop.operation_xyz
list. It is normally the sequence number of the entry in that
list, and should be identified with the code 'n' in the geometry
symmetry codes of the form 'n_pqr'. The identity operation
(i.e. _space_group_symop.operation_xyz set to 'x,y,z') should be
set to 1.
Type: Integer
Units: none
The permitted range is 1 → 192
Evaluation method:
_space_group_symop.id = Current_row(space_group_symop.id) + 1
Category:
space_group_symop
