Synthesis,Structural Characterization,and Cation Transport of Tripotassium Pentabismuth Arsenate K3Bi5(AsO4)6 |
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| Authors: | Chiraz Falah Habib Boughzala Ahmed Driss Tahar Jouini |
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| Institution: | 1. Département de Chimie, Faculté des Sciences de Tunis, Laboratoire de Matériaux et Cristallochimie , Tunis El Manar , Tunisie;2. Institut Préparatoire aux études Ingénieurs Nabeul, Laboratoire de Matériaux et Cristallochimie , Nabeul , Tunisie |
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| Abstract: | During the exploration of the K2O-Bi2O 3 -As2O5 system, single crystals of a new arsenate of trivalent bismuth, K3Bi5(AsO4) 6, were isolated by solid state reaction at 600°C. The title compound crystallizes in the monoclinic system, space group C2/c (N°15) with a = 18.257(2) Å, b = 7.260(1) Å, c = 20.130(4) Å, β = 119.86(1)°, and Z = 4. Its structure consists of a three-dimensional framework made up of AsO4 tetrahedra and BiO6 and BiO7 polyhedra sharing edges and corners, delimiting cavities wherein K+ ions reside. This compound exhibits a potassium ion conductivity but with rather low conductivity value. |
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| Keywords: | Arsenate bismuth cation transport crystal structure potassium synthesis |
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