Difference between revisions of "Site symmetry"
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| − | <Font color="blue"> Symétrie ponctuelle </Font> (''Fr'') | + | <Font color="blue">Symétrie ponctuelle, symétrie du site</Font> (''Fr''); <Font color="red">Punktsymmetrie, Lagesymmetrie</Font> (''Ge''); <Font color="green">Simetria punctual</Font> (''Sp''); <Font color="black">Simmetria del sito, simmetria puntuale</Font> (''It''); <Font color="purple">席対称性</Font> (''Ja''). |
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== Definition == | == Definition == | ||
Revision as of 11:19, 12 April 2016
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
Sections 2.2.12 and 8.3.2 of International Tables of Crystallography, Volume A