A novel mixed-metal borate with large [B12O18(OH)6]6- motif: Synthesis,structure and property |
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| Institution: | 1. College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, China;2. Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China;1. Institute of Experimental Immunology, University of Zurich, Switzerland;2. Department of Neurology, Inselspital, University Hospital Berne, Switzerland;3. Immunodeficiency Clinic, Department Biomedicine, University Hospital Basel, Switzerland;1. UERJ–Universidade do Estado do Rio de Janeiro, Instituto de Física, Departamento de Física Teórica, Rua São Francisco Xavier 524, 20550-013 Maracanã, Rio de Janeiro, RJ, Brazil;2. UFF–Universidade Federal Fluminense, Instituto de Física, Campus da Praia Vermelha, Avenida General Milton Tavares de Souza s/n, 24210-346, Niterói, RJ, Brazil;1. Geoscience Australia, P.O. Box 378, Canberra, A.C.T. 2601, Australia;2. Planetary Science Institute, Australian National University, Acton, Australian Capital Territory, Australia;3. Geological Survey of Western Australia, 100 Plain Street, East Perth, W.A. 6004, Australia;4. Applied Geology, John de Laeter Centre, TIGeR, Curtin University, Bentley, WA 6102, Australia;5. Centre for Exploration Targeting, Curtin Node, Department of Applied Geology, Western Australian School of Mines, Curtin University, WA 6102, Australia;6. Centre for Exploration Targeting, School of Earth and Environment, The University of Western Australia, 35 Stirling Highway, Crawley, W.A. 6004, Australia;7. Research School of Earth Sciences, Australian National University, Acton, Canberra 2601, Australia;8. School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 151-747, South Korea;1. Department of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada;2. Department of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario, Canada |
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| Abstract: | A new mixed-metal polyborate, Na5LiB12O18(OH)6]·2H2O (1), has been synthesized using solvothermal method and characterized by IR spectroscopy, thermogravimetric analysis, UV–Vis spectroscopy, powder and single-crystal X-ray diffraction, respectively. It crystallizes in the trigonal space group R-3c (No. 167) with unit cell parameters of a = b = 9.6767(6) Å, c = 36.358(5) Å, and Z = 6. Its structure features unprecedented 3D framework constructed from novel honeycomb-shaped inorganic Na-O sheets with unique 12-MR sodium rings and supramolecular polyborate 2D layers of lithium-centered B12O18(OH)6]6-. UV–Vis spectral characterization indicates that compound 1 is a wide-band-gap semiconductor. |
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| Keywords: | Metal borate Cluster Crystal structure Solvothermal synthesis |
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