Modulated Structures CIF Dictionary version 1.0

_space_group_ssg_name

Name

Category: space_group

Data type: char

Example: 'Hall's notation W:-P -2xb -2ya:q q'

Definition

    	
   Superspace group symbol conforming to an alternative definition
   from that given in _space_group_ssg_name_IT and
   _space_group_ssg_name_WJJ for one-dimensional modulated
   structures or to the superspace group name for higher dimensions.
   When necessary indicate the origin and the setting. Use a colon 
   ':' as separator between the different parts of the superspace 
   group symbol. Within each part leave a space between each 
   component. Rules about the notation for Hermann-Mauguin and Hall 
   symbols (if present) are given in the Symmetry Cif Dictionary
   (cif_sym.dic 1.0) and, partially, in _space_group_ssg_name_IT 
   and _space_group_ssg_name_WJJ. For composites described in a 
   single data block, the superspace group describes the symmetry of
   the whole structure. The symmetry of each subsystem can be 
   derived using the appropriate W matrices.