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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
_refine_ls.number_restraints
Name:_refine_ls.number_restraints
Aliases:
_refine_ls_number_restraints
_refine.ls_number_restraints
Definition:
The number of restrained parameters in the least-squares refinement. These
parameters are not directly dependent on another refined parameter. Often
restrained parameters involve geometry or energy dependencies. See also
_atom_site.constraints and _atom_site.refinement_flags_*. A description
of refinement constraints may appear in _refine.special_details.
Type: Integer
Units: none
The permitted range is 0 → infinity
Category:
refine_ls
