Difference between revisions of "Site symmetry"
From Online Dictionary of Crystallography
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[[Category:Fundamental crystallography]] | [[Category:Fundamental crystallography]] | ||
Revision as of 16:49, 11 April 2017
Symétrie ponctuelle, symétrie du site (Fr); Punktsymmetrie, Lagesymmetrie (Ge); Simetria punctual (Sp); Simmetria del sito, simmetria puntuale (It); 席対称性 (Ja).
Definition
The site-symmetry group (often called point symmetry) of a point is the finite group formed by the set of all symmetry operations of the space group of the crystal that leave that point invariant. It is isomorphic to a (proper or improper) subgroup of the point group to which the space group under consideration belongs. In general, the origin is a point of highest site symmetry.
See also
- Section 1.4.4.2 of International Tables of Crystallography, Volume A, 6th edition