title: Cs3W3PO13: A Tungsten Phosphate with One-Dimensional Zigzag Tunnels Exhibiting Strongly Anisotropic Thermal Expansion.
abstract: 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.
authors.affiliation: University of the Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Pifu
authors.initials: P
authors.lastname: Gong
authors.affiliation: University of the Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Xingxing
authors.initials: X
authors.lastname: Jiang
authors.affiliation: University of the Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Yang
authors.forename: Siyang
authors.initials: S
authors.lastname: Luo
authors.forename: Rongjin
authors.initials: R
authors.lastname: Huang
authors.forename: Laifeng
authors.initials: L
authors.lastname: Li
authors.forename: Chuangtian
authors.initials: C
authors.lastname: Chen
authors.affiliation: University of the Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Zheshuai
authors.initials: Z
authors.lastname: Lin