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Difference between revisions of "Site symmetry"

From Online Dictionary of Crystallography

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<Font color="blue"> Symétrie ponctuelle </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'').
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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.
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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 ==
 
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*Chapter 1.4.4.2 of ''International Tables for Crystallography, Volume A'', 6th edition
Sections 2.2.12 and 8.3.2 of ''International Tables of Crystallography, Volume A''<br>
 
  
 
[[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