Heterometallic sulfide cluster [Ag6Sn6S20]10 ?: Solvothermal syntheses and characterizations of silver thiostannates with lanthanide complex counter cations |
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| Affiliation: | 1. Department of Clinical Pharmacy, School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan;2. Department of Green Material Technology, Green Technology Research Institute, Chinese Petroleum Corporation (CPC Corporation), Kaohsiung, Taiwan;3. Department of Mechanical and Automation Engineering, I-Shou University, Kaohsiung, Taiwan;4. Department of Fragrance and Cosmetic Science, Kaohsiung Medical University, Kaohsiung, Taiwan;1. College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, People’s Republic of China;2. School of Life Sciences, Shandong University of Technology, Zibo 255049, People’s Republic of China;1. State Key Laboratory for Novel Software Technology, Nanjing University, China;2. Department of Computer and Information Sciences, Temple University, USA;1. Dept. of Phys., Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan;2. Faculty of Environmental Design, Institute of Science and Engineering, Kanazawa University, Kanazawa 920-1192, Japan |
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| Abstract: | Novel organic hybrid silver thiostannates Hen]4Ln(en)4]2Ag6Sn6S20]·3en (Ln = Er, 1; Tm, 2; Yb, 3) were prepared by the reactions of Ln2O3, Ag, Sn and S in ethylenediamine (en) under solvothermal conditions. Six SnS4 tetrahedra and six AgS3 triangles are connected into the heterometallic sulfide cluster Ag6Sn6S20]10 ? via edge-sharing. In the Ag6Sn6S20]10 ? cluster, a hexanuclear Ag6S6 core is enclosed by two Sn3S10 fragments. The Ag6S6 core is the first As–S cluster stabilized by inorganic SnS4 ligands. In 1–3, all Ln3 + ions are in 8-fold coordination environments that involved four bidentate en ligands, forming bicapped trigonal prisms. Compounds 1–3 show well-defined absorption edges with band gaps in the range of 2.18–2.47 eV. |
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