Definition:
The subgroup of the space group that leaves the point fixed. It is isomorphic to a subgroup of the point group of the space group. The site-symmetry symbol indicates the symmetry in the symmetry direction determined by the Hermann-Mauguin symbol of the space group (see International Tables for Crystallography Volume A, Section 2.2.12). Ref: International Tables for Crystallography (2002). Volume A, Space-group symmetry, edited by Th. Hahn, 5th ed. Dordrecht: Kluwer Academic Publishers.Examples:
2.22 | position 2b in space group No. 94, P 42 21 2 |
42.2 | position 6b in space group No. 222, P n -3 n |
2.. | Site symmetry for the Wyckoff position 96f in space group No. 228, F d -3 c. The site-symmetry group is isomorphic to the point group 2 with the twofold axis along one of the {100} directions. |
Type: char
Mandatory item: no
Category: space_group_Wyckoff
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