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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
Category GEOM_TORSION
Name:'GEOM_TORSION'
Parent category:
GEOM
Definition:
Data items in the GEOM_TORSION category specify the torsion angles in the
structural model as derived from the atomic sites.
Category is of type Loop
Category keys:_geom_torsion.atom_site_label_1
_geom_torsion.atom_site_label_2
_geom_torsion.atom_site_label_3
_geom_torsion.atom_site_label_4
_geom_torsion.site_symmetry_1
_geom_torsion.site_symmetry_2
_geom_torsion.site_symmetry_3
_geom_torsion.site_symmetry_4
This category contains the following items
- _geom_torsion.angle
- _geom_torsion.angle_su
- _geom_torsion.atom_site_label_1
- _geom_torsion.atom_site_label_2
- _geom_torsion.atom_site_label_3
- _geom_torsion.atom_site_label_4
- _geom_torsion.distances
- _geom_torsion.distances_su
- _geom_torsion.id
- _geom_torsion.publ_flag
- _geom_torsion.site_symmetry_1
- _geom_torsion.site_symmetry_2
- _geom_torsion.site_symmetry_3
- _geom_torsion.site_symmetry_4
