Citation: WEI Kun-Yu, YANG Tao, QIN Shao-Jie, MA Xiang, LI Xin-Xiong, YANG Guo-Yu. Hydrothermal Synthesis, Structural Characterization and Proton-conducting Property of a 3-D Framework Based on Zr₃Na₃-Substituted Polyoxometalate Building Blocks[J]. Chinese Journal of Structural Chemistry, ;2016, 35(9): 1461-1468. doi: 10.14102/j.cnki.0254-5861.2011-1187 shu

Hydrothermal Synthesis, Structural Characterization and Proton-conducting Property of a 3-D Framework Based on Zr₃Na₃-Substituted Polyoxometalate Building Blocks

1.
a College of Chemistry, Fuzhou University, Fuzhou 350116, China;
2.
b State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China

Received Date: 7 March 2016
Available Online: 29 June 2016
Fund Project: This work was supported by the National Natural Science Foundation of China (No. 21401195) (No. 21401195) the Natural Science Foundation for young scholars of Fujian province (2015J05041) (2015J05041)the open foundation of State Key Laboratory of Structural Chemistry (20160020) (20160020)

A novel Zr-substituted polyoxometalate(POM) H₂K₃[Na₆(H₂O)₉] [Zr₃Na₃O₃(H₂O)₃-(GeW₉O₃₄)₂]·12H₂O(1) has been made under hydrothermal conditions. 1 was characterized by infrared spectrum, thermogravimetric analysis, powder X-ray diffraction and single-crystal X-ray diffraction. Crystal data are:H₅₀O₉₅Na₉K₃Ge₂Zr₃W(1)₈, hexagonal space group P6₃/mmc, a=15.2251(6), b=15.2251(6), c=25.035(2)Å, V=5025.7(6)Å³, Z=2, D_c=3.716 mg/m³, μ=21.648 mm^-1, F(000)=4726, the final R=0.0259 and wR=0.0647 for 1487 observed reflections with I>2σ(I). Single-crystal X-ray structure analysis reveals that 1 exhibits a 3-dimensional framework structure based on Zr₃Na₃-substituted polyanions[Zr₃Na₃O₃(H₂O)₃(GeW₉O₃₄)₂]^11- and [Na₆(H₂O)₉]⁶⁺ clusters building blocks. UV-Vis spectrum indicates that 1 is a wide-gap semiconductor. In addition, the proton-conducting property of 1 was also investigated.
- zirconium,
- polyoxometalate,
- crystal structure,
- hydrothermal synthesis,
- proton-conducting property
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