Synthesis, crystal structure and optical properties of a new lead bismuth borate |
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| Authors: | Wenwu Zhao Shilie Pan Jian Han Zhongxiang Zhou |
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| Institution: | aXinjiang Key Laboratory of Electronic Information Materials and Devices, Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, 40-1 South Beijing Road, Urumqi 830011, China;bGraduate School of the Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | A new phase of the compound PbBiBO4 has been successfully synthesized via the standard solid-state reaction, and the crystal structure has been determined from X-ray monocrystal diffraction data. It crystallizes in orthorhombic space group Cmca (No. 64) with lattice constants a = 10.782(3) Å, b = 10.502(3) Å, c = 7.477(2) Å, Z = 8. The crystal structure is characterized by a three-dimensional structure consisting of BiO6 octahedra, PbO4 tetrahedra and BO3 triangles. The BiO6 octahedra compose the layers through the O(2) atoms and O(3) atoms along the 1 0 1] direction, which connects the BO3 trigonal groups by sharing the O(3) and two O(1) atoms and links the PbO4 tetrahedra through the O(2) atoms. The UV–Vis–NIR Diffuse-Reflectance spectrum shows that the ultraviolet cutoff edge for the PbBiBO4 crystal is about 310 nm. Functional groups in the sample were identified by Infrared spectrum. |
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| Keywords: | PbBiBO4 Powder synthesis Crystal structure UV&ndash Vis&ndash NIR Diffuse-Reflectance spectrum |
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