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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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
Publication:	JOURNAL OF SOLID STATE CHEMISTRY
Publisher:	ACADEMIC PRESS INC ELSEVIER SCIENCE
Additional Information:	Copyright of 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
Date Deposited:	20 Nov 2019 10:45
Last Modified:	20 Nov 2019 10:45
URI:	http://eprints.iisc.ac.in/id/eprint/63593

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