centrosymmetric
Speech parts
1. centrosymmetric - Adjective
2. centrosymmetric - Adjective Satellite
Meaning
having a symmetrical arrangement of radiating parts about a central point
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Examples
In centrosymmetric complexes, such as octahedral complexes, d-d transitions are forbidden by the Laporte rule and only occur because of vibronic coupling in which a molecular vibration occurs together with a d-d transition.
The action of piezoelectricity in Topaz can probably be attributed to ordering of the (F,OH) in its lattice, which is otherwise centrosymmetric: orthorhombic bipyramidal (mmm).
This compound is centrosymmetric and has a very short hydrogen bond (114.5 pm ) that is similar to the length in the bifluoride ion HFmain (114 pm). citation In aqueous solution the hydroxide ion forms strong hydrogen bonds with water molecules.
Many ferroelectrics lose their piezoelectric properties above Tc completely, because their paraelectric phase has centrosymmetric crystallographic structure.