Data Item _space_group.name_Hall
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General 
- Item name
- _space_group.name_Hall
- Category name
- space_group
- Attribute name
- name_Hall
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 7.0 % 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.]
Item Example1
P 2c -2ac
Item Example2
-I 4bd 2ab 3
Data Type 
- Data type code
- line
- Data type detail
- char item types / multi-word items ...
- Primitive data type code
- char
- Regular expression
- [][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*
Related Items 
| Related Item Name | Relation Type |
|---|---|
| _symmetry.space_group_name_Hall | alternate |
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _space_group_name_Hall | cif_core.dic | 2.3 |