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Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)
Published on: December 29, 2016
Quaternary supertetrahedra-layered telluride CsMnInTe3: why does this type of chalcogenide tilt?
Hua Lin1, Jin-Ni Shen, Ling Chen
1State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou, Fujian 350002, People's Republic of China.
Abstract:
Dark-red CsMnInTe3 is synthesized by a solid-state approach using CsCl as the reactive flux. This layered compound is constructed by T3 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(3). 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.
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