Dielectric Anisotropy of a Homochiral Trinuclear Nickel(II) Complex
2007
Hydrothermal reaction of (S)-1,1‘1‘ ‘-2,4,6-trimethylbenzene-1,3,5-triyl-tris(methylene)-tris-pyrrolidine-2-carboxylic acid (TBPLA) with Ni(ClO4)2·6H2O gave pale green block crystals of 1. X-ray crystal structure analysis showed the complex to be a trinuclear descrete homochiral molecule with each Ni center sitting in distorted octahedron geometries. Anisotropic permittivity measurements reveal that 1 exhibits huge dielectric anisotropy along its three different crystal axes that is ca. 3.5 times of er (E//c)/er (E//b) with temperature and frequency independence.
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