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 > STRUCTURE > REFINE > REFINE_LS

Index

Core dictionary version 3.3.0

_refine_ls.extinction_expression

Name:
_refine_ls.extinction_expression

Aliases:
_refine_ls_extinction_expression
_refine.ls_extinction_expression

Definition:

   
    A description of or reference to the extinction-correction equation
    used to apply the data item  _refine_ls.extinction_coef. This
    information should be sufficient to reproduce the extinction-correction
    factors applied to the structure factors.

Example:

'Larson approach' Larson, A. C. (1970). "Crystallographic Computing", edited by F. R. Ahmed. Eq. (22) p. 292. Copenhagen: Munksgaard.

Type: Text

Category:
refine_ls

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