tetrahedral symmetry


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tetrahedral symmetry

[′te·trə¦hē·drəl ′sim·ə·trē]
(physics)
Having the same rotation symmetries as a regular tetrahedron.
References in periodicals archive ?
It was observed that the dopant occupies the central position, maintaining the overall tetrahedral symmetry of the cage.
Could a coordinate system, with tetrahedral symmetry be more convenient than Cartesian coordinates?
The [sp.sup.3] hybrid is a well-known geometrical entity whose equal distribution of electron densities allows the construction of more complex bonds toward other [sp.sup.3] carbons, possibly in different hybridization states, or towards other atoms, some of which also displaying the [sp.sup.3] tetrahedral symmetry. Tetrahedral carbon could be presented with a centre of mass in the gravicentre of a tetrahedron, with four specific directions oriented in such a way as to form an angle of 109[degrees] 28' between any two of the four axes.
The present study is a reflection of what the world could look like if we did use the coordinates based on the four axes forming the tetrahedral symmetry.
The resulting configuration, which displays an unusual tetrahedral symmetry, has less energy than any other known arrangement.