Data Item _space_group.name_Hall


Item name
Category name
Attribute name
Required in PDB entries
Used in current PDB entries
Yes, in about 2.2 % of entries

Item Description

Space-group symbol defined by Hall. Each component of the space-group name is separated by a space or an underscore. The use of a space is strongly recommended. The underscore is only retained because it was used in old CIFs. It should not be used in new CIFs. _space_group.name_Hall uniquely defines the space group and its reference to a particular coordinate system. Ref: Hall, S. R. (1981). Acta Cryst. A37, 517-525; erratum (1981), A37, 921. [See also International Tables for Crystallography Vol. B (2001), Chapter 1.4, Appendix 1.4.2.]
 P 2c -2ac
 -I 4bd 2ab 3

Data Type

Data type code
Data type detail
char item types / multi-word items ...
Primitive data type code
Regular expression
[][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*


Alias Item Name Dictionary Name Dictionary Version
_space_group_name_Hall cif_core.dic 2.3