Cs3W3PO13: A Tungsten Phosphate with One-Dimensional Zigzag Tunnels Exhibiting Strongly Anisotropic Thermal Expansion

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• 作者：Pifu Gong ; Xingxing Jiang ; Yi Yang ; Siyang Luo ; Rongjin Huang ; Laifeng Li ; Chuangtian Chen ; Zheshuai Lin
• 刊名：Inorganic Chemistry
• 出版年：2016
• 出版时间：June 6, 2016
• 年：2016
• 卷：55
• 期：11
• 页码：5113-5115
• 全文大小：237K
• 年卷期：0
• ISSN：1520-510X

文摘

A new tungsten phosphate, Cs₃W₃PO₁₃, is synthesized using the high-temperature flux method. Cs₃W₃PO₁₃ crystallizes in the space group Pnma and contains one-dimensional zigzag tunnels, which are found for the first time in tungsten phosphate. This highly anisotropic structural feature results in a very strong anisotropic thermal expansion, with thermal expansion coefficients of 14.15 ± 1.11 and 0.72 ± 0.22 M K^–1 along the a and b axes, respectively, over the temperature range from 13 to 270 K. In addition, thermal analysis, UV–vis–near-IR diffuse reflectance, and first-principles electronic structure calculations on Cs₃W₃PO₁₃ are performed.