An open-framework bimetallic chalcogenide structure K{sub 3}Rb{sub 3}Zn{sub 4}Sn{sub 3}Se{sub 13} built on a unique [Zn{sub 4}Sn{sub 3}Se{sub 16}]{sup 12-} cluster: synthesis, crystal structure, ion exchange and optical properties
- Department of Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854 (United States)
Single crystals of K{sub 3}Rb{sub 3}Zn{sub 4}Sn{sub 3}Se{sub 13} were synthesized by solvothermal method. The building block in this structure is a [Zn{sub 4}Sn{sub 3}Se{sub 16}]{sup 12-} cluster which consists of four ZnSe{sub 4} and three SnSe{sub 4} tetrahedra connected through corner-sharing of Se atoms. The 3D network contains intersecting channels running parallel to the crystallographic [2 1 1], [1-1-1] and [12-1] directions. The disordered K{sup +} and Rb{sup +} cations reside in these channels. Ion exchange of Cs{sup +} with disordered Rb{sup +}/K{sup +} ions in the structure showed a partial replacement of 15.8%. Optical diffuse reflectance experiments were carried out and gave a sharp absorption edge at 2.6 eV.
- OSTI ID:
- 20883087
- Journal Information:
- Materials Research Bulletin, Vol. 40, Issue 1; Other Information: DOI: 10.1016/j.materresbull.2004.09.016; PII: S0025-5408(04)00298-3; Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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