# Difference between revisions of "Site symmetry"

### From Online Dictionary of Crystallography

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− | < | + | <font color="blue">Symétrie ponctuelle, symétrie du site</font> (''Fr''). <font color="red">Lagesymmetrie, Punktlagesymmetrie</font> (''Ge''). <font color="black">Simmetria del sito, simmetria puntuale</font> (''It''). <font color="purple">席対称</font> (''Ja''). <font color="green">Simetría posicional, simetría del sitio</font> (''Sp''). |

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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 == | ||

− | + | *Chapter 1.4.4.2 of ''International Tables for Crystallography, Volume A'', 6th edition | |

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[[Category:Fundamental crystallography]] | [[Category:Fundamental crystallography]] |

## Latest revision as of 14:02, 26 March 2019

Symétrie ponctuelle, symétrie du site (*Fr*). Lagesymmetrie, Punktlagesymmetrie (*Ge*). Simmetria del sito, simmetria puntuale (*It*). 席対称 (*Ja*). Simetría posicional, simetría del sitio (*Sp*).

## 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

- Chapter 1.4.4.2 of
*International Tables for Crystallography, Volume A*, 6th edition