Methanolothermal Synthesis and Structures of the Quaternary Group 14 – Group 15 Cesium Selenidometalates Cs3AsGeSe5 and Cs4Ge2Se6 |
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Authors: | Tobias van Almsick William S Sheldrick |
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Abstract: | Cs3AsGeSe5 and Cs4Ge2Se6 can be prepared by methanolothermal reaction of elemental As, Ge and Se with Cs2CO3 at 190 °C. The former quaternary phase contains zweier {AsGeSe5}3?] chains consisting of corner‐bridged GeSe4 tetrahedra and AsSe3 pyramids and represents the first GeIV‐AsIII chalcogenidometalate. Cs4Ge2Se6 exhibits discrete Ge2Se6]4? anions formed by two edge‐sharing GeSe4 tetrahedra. |
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Keywords: | Arsenic Germanium Selenidometalates |
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