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Three new mixed-alkali- and alkaline-earth-metal borates: from 1D chain to 2D layer to 3D framework
Han-Qing Wu1, Ping Ju, Huan He
1MOE Key Laboratory of Cluster Science, School of Chemistry, Beijing Institute of Technology , Beijing 100081, China.
Abstract:
Three new mixed-metal borates, K4Ba2[B14O20(OH)10]·3H2O (1), LiSr2[B10O16(OH)3] (2), and LiBa[B9O15] (3), have been made under hydro(solvo)thermal conditions and characterized by means of IR, UV-vis-near-IR, thermogravimetric analysis, powder X-ray diffraction, and single-crystal X-ray diffraction, respectively. 1 is a 1D chain constructed from B14O21(OH)10(10-) cluster units, 2 is of a 2D layer with nine-membered-ring windows built up of B10O19(OH)3(9-) cluster units, while 3 exhibits a 3D framework with 12-membered-ring channels composed of B3O7 cluster units.
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