Na5(In4S)(InS4)3.6H2O, a zeolite-like structure with unusual SIn4 tetrahedra |
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| Authors: | Zheng Nanfeng Bu Xianhui Feng Pingyun |
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| Institution: | Department of Chemistry, University of California, Riverside, California, 92521, USA. |
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| Abstract: | A hydrated sodium indium sulfide, Na5(In4S)(InS4)3.6H2O, has been prepared by hydrothermal synthesis. This material contains a tetrahedral sulfur site coordinated to four trivalent indium ions, an unusual bonding pattern not previously observed in open framework chalcogenides. The structure is related to the perovskite (CaTiO3) type with simultaneous substitutions of Ti by SIn4, O by InS4, and Ca2+ by Na5(H2O)6]5+. It is a wide-gap semiconductor and shows photocatalytic activity under UV light for hydrogen generation from aqueous solution without use of any cocatalyst. |
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