Difference between revisions of "Site symmetry"
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== Definition == | == Definition == | ||
| − | The site-symmetry group 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. | + | 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 == | == See also == | ||
Revision as of 06:49, 9 May 2006
Symétrie ponctuelle (Fr). Punktsymmetrie, Lagesymmetrie (Ge). Simetria punctual (Sp). Simmetria del sito, simmetria puntuale (It).
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