Core dictionary (coreCIF)

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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 Tables for Crystallography (2026). Vol. G. Early view chapter
https://doi.org/10.1107/97809553602060001011

Chapter 4.2 Core dictionary (coreCIF)

Name:
_model_site.fract_xyz

Definition:

   
    Vector of fractional atom site coordinates.

Type: Real

Values appear in Matrix context.

Dimension: [3]

Units: none

Evaluation method:

        With  m  as  model_site

                      xyz =  _atom_site[m.label].fract_xyz

    _model_site.fract_xyz =  SymEquiv(m.symop, xyz)

Category:
model_site

International Tables for Crystallography (2026). Vol. G. Chapter 4.2
https://doi.org/10.1107/97809553602060001011