MIn3S5 (M = Rb, Cs), a new structure type based on a joint ccp arrangement of S
2- and M+: Structure, microstructure, and twinning

Deiseroth, H. J.; Reiner, C.; Schlosser, M.; Kienle, L.

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MIn₃S₅ (M = Rb, Cs), a new structure type based on a joint ccp arrangement of S^2- and M⁺: Structure, microstructure, and twinning

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Kienle, L.
Department Nanochemistry (Bettina V. Lotsch), Max Planck Institute for Solid State Research, Max Planck Society;
Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Deiseroth, H. J., Reiner, C., Schlosser, M., & Kienle, L. (2002). MIn₃S₅ (M = Rb, Cs), a new structure type based on a joint ccp arrangement of S^2- and M⁺: Structure, microstructure, and twinning. Zeitschrift für anorganische und allgemeine Chemie, 628(7), 1641-1647.

Cite as: https://hdl.handle.net/21.11116/0000-000E-F2F1-0

Abstract

The compounds MIn3S5 (M = Rb, Cs) represent new ternary
chalcogenides on the quasi binary section M2S-In2S3 (M = Rb,
Cs) with the two binary phases in a molar ratio of 1:3. RbIn3S5
and CsIn3S5 (both red-transparent) crystallize in a new
structure type (SG: P2/m, Z = 3). The indium atoms are
coordinated by sulfur atoms with tetrahedral as well as
octahedral arrangement, while the coordination numbers of the
two crystallographically independent M atoms are nine and ten.
A special feature of these solids is the slightly distorted
joint ccp arrangement of the sulfur and alkali metal atoms. The
crystals of both solids are characterized by a systematic
twinning based on the peculiarity just mentioned. The twinnig
law and the atomic arrangement at the twin interface have been
investigated by single crystal X-Ray diffraction and high
resolution electron microscopy (HREM).