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)


Index

Core dictionary version 3.3.0

_refln.class_code

Name:
_refln.class_code

Alias:
_refln_class_code

Definition:

   
    Code identifying the class to which this reflection has been
    assigned. This code must match a value of _reflns_class.code.
    Reflections may be grouped into classes for a variety of
    purposes. For example, for modulated structures each reflection
    class may be defined by the number m = Sum | m~i~ |, where the m~i~
    are the integer coefficients that, in addition to h,k,l, index
    the corresponding diffraction vector in the basis defined
    for the reciprocal lattice.

Type: Word

Category:
refln








































to end of page
to top of page