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Syntheses, structural variants and characterization of A(2)CdSn(2)S(6) (A = Cs, Rb and K) compounds

Pogu, Ashok and Jaschin, P W and Varma, K B R and Vidyasagar, Kanamaluru (2019) Syntheses, structural variants and characterization of A(2)CdSn(2)S(6) (A = Cs, Rb and K) compounds. In: JOURNAL OF SOLID STATE CHEMISTRY, 277 . pp. 713-720.

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Official URL: https://dx.doi.org/10.1016/j.jssc.2019.07.024

Abstract

Four new A(2)CdSn(2)S(6) (A= Cs(1), Rb(2), K(3-beta) and K(3-alpha)) compounds have been synthesized and characterized by X-ray diffraction and spectroscopic methods. The isostructural cesium(1) and rubidium(2) compounds have noncentrosymmetric three-dimensional tetrahedral CdSn2S6](2-) framework structure and show second-harmonic-generation response. The layered potassium compounds, 3-beta and 3-alpha, have centrosymmetric tetrahedral and octahedral CdSn2S6](2-) framework structures respectively and the compound 3-beta, on heating, transforms to compound 3-alpha. The compound 3-alpha undergoes facile potassium ion-exchange in aqueous medium with various mono-, di- and tri- valent cations at room temperature.

Item Type: Journal Article
Additional Information: copyright for this article belongs to ACADEMIC PRESS INC ELSEVIER SCIENCE
Keywords: Structural variants; Synthesis; Single crystal X-ray structure; Second-harmonic-generation; Ion-exchange
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Depositing User: Id for Latest eprints
Date Deposited: 18 Sep 2019 07:31
Last Modified: 18 Sep 2019 07:31
URI: http://eprints.iisc.ac.in/id/eprint/63551

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