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Item _space_group.name_H-M_full

Description

              The Full International Hermann-Mauguin space group symbol as
               defined in Section 2.3 and given as the second item of the 
               second line of one of the Space Group Tables of Section 7 of
               International Tables for Crystallography Vol. A (1995). 
               Each component of the space group name is separated by a 
               space or an underscore.  The use of space is strongly
               recommended.  The underscore is only retained because it
               was used in earlier archived files.  It should not be 
               used in new CIFs. 
               Subscripts should appear without special symbols. Bars should
               be given as negative signs before the numbers to which they
               apply. The commonly used Hermann-Mauguin symbol determines the
               space group type uniquely but a given space group type may
               be described by more than one Hermann-Mauguin symbol. The
               space group type is best described using the *.IT_number
               or *.name_Schoenflies. The Full International Hermann-Mauguin
               symbol contains information about the choice of basis for
               monoclinic and orthorhombic space groups but does not give
               information about the choice of origin. To define the setting
               uniquely use *.name_Hall, list the symmetry operations
               or generators, or give the transformation relating
               the setting used to the reference setting defined in this
               dictionary under *.reference_setting.

Category

Item Examples

Example 1:

full symbol for Pnma

P 21/n 21/m 21/a

Mandatory Code

Data Type Code

Alias Names

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