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 > DIFFRN > DIFFRN_REFLN

Index

Core dictionary version 3.3.0

_diffrn_refln.angle_chi

Name:
_diffrn_refln.angle_chi

Alias:
_diffrn_refln_angle_chi

Definition:

   
     Diffractometer angle at which the intensity is measured. This was
     calculated from the specified orientation matrix and the original
     measured cell dimensions before any subsequent transformations.

Type: Real

Units: degrees

The permitted range is -180.0 → 180.0

Category:
diffrn_refln

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