Actions

Difference between revisions of "Site symmetry"

From Online Dictionary of Crystallography

(Tidied translations and corrected German and Spanish (U. Mueller))
m
 
Line 1: Line 1:
<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">席対称性</font> (''Ja''). <font color="green">Simetría posicional, simetría del sitio</font> (''Sp'').
+
<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'').
  
  

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