Tables for
Volume G
Definition and exchange of crystallographic data
Edited by S. R. Hall and B. McMahon

International Tables for Crystallography (2006). Vol. G. ch. 3.4, p. 132


G. Madariagaa*

aDepartamento de Física de la Materia Condensada, Facultad de Ciencia y Tecnología, Universidad del País Vasco, Apartado 644, 48080 Bilbao, Spain
Correspondence e-mail:

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Category groups defined in the msCIF dictionary

The groups are listed in the order in which they are described in this chapter.

SectionCategory groupSubject covered
(a) Experimental measurements[link] CELL The unit cell, especially cell subsystems for composite structures[link] DIFFRN Multi-dimensional diffraction pattern[link] EXPTL Details of the experiment specific to modulated and composite structures
(b) Analysis[link] REFINE Refinement procedures[link] REFLN Reflection measurements indexed in higher-dimensional space
(c) Atomicity, chemistry and structure[link] to[link] ATOM Atom sites in a modulated structure[link] GEOM Geometry of a structure in superspace[link] SYMMETRY Symmetry information
(d) File metadata[link] AUDIT The structure of the CIF