Quaternary supertetrahedra-layered telluride CsMnInTe: Why does this type of chalcogenide tilt?

Inorganic Chemistry, ISSN: 0020-1669, Vol: 52, Issue: 19, Page: 10726-10728
2013
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Article Description

Dark-red CsMnInTe is synthesized by a solid-state approach using CsCl as the reactive flux. This layered compound is constructed by T supertetrahedra and crystallizes in the space group C2/c with a = 12.400(7) Å, b = 12.400(7) Å, c = 24.32(2) Å, β = 97.31(2), and V = 927.07(6) Å. The electrostatic interactions cause tilting of the supertetrahedra layers, and the value of the tilting angle is fixed by a structure index, β′ = 180 - arccos(a/4c). Such an index is valid for all of the members in this family known to date. © 2013 American Chemical Society.

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