Core dictionary (coreCIF)

Hall, Sydney R.; Allen, Frank H.; Brown, I. David; Toby, Brian H.; Hester, James R.; Vaitkus, Antanas; Rowles, Matthew R.; Bollinger, John C.; Rainer, Daniel N.; McMahon, Brian

doi:10.1107/97809553602060001011

RELATED SITES: IUCr | IUCr Journals

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)

CIF_CORE_HEAD > DIFFRACTION > REFLN

Index

Core dictionary version 3.3.0

_refln.symmetry_epsilon

Name:
_refln.symmetry_epsilon

Alias:
_refln_symmetry_epsilon

Definition:

   
    The symmetry reinforcement factor corresponding to the number of
    times the reflection indices are generated identically from the
    space-group symmetry operations.

Type: Integer

Units: none

The permitted range is 1 → 48

Category:
refln

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