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Solid State Communications
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Structural classification of layered dichalcogenides of group IV B, V B and VI B transition metals

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Abstract

A classification of the trigonal prismatic and octahedral structures exhibited by the layered dichalcogenides of group IV B, V B and VI B metals is achieved through consideration of the relative size, polarisation of the bonding orbitals, and the ionicity of the metal-chalcogen bond. A plot of the ratio of the covalent radii of the metal and chalcogen atoms against Pauling's resonating bond ionicity is shown to successfully achieve a separation of the two structures, consistent with the primarily covalent nature of the bonds. © 1975.

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Solid State Communications

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