Synthesis, Crystal Structure, and Electrochemical Properties of a Ox-Functionalized Zirconium(Ⅳ) Substituted Tungsten-Oxo Cluster

Abstract

Abstract: Under hydrothermal conditions,a new Ox-functionalized zirconium(Ⅳ) substituted tungsten-oxo cluster, H₁₂Na₂[Zr₄(μ₃-O)₂(μ₂-OH)₂(Ox)₂(α-SiW₁₀O₃₇)₂]·22H₂O (Ox=oxalic acid) was successfully obtained and characterized by single crystal X-ray diffraction analysis, IR, TG and elemental analysis. The title compound consists of a sandwich-type tungsten-oxo cluster unit built by two divacant {α-SiW₁₀O₃₇} fragments linked through a {Zr₄(μ₃-O)₂(μ₂-OH)₂(Ox)₂} cluster and crystallizes in the monoclinic system, space group P2₁/c with a=2.132 2 (6) nm, b=1.271 6 (4) nm, c=2.223 1(7) nm, β=110.933(4)°, V=5.629 9(3) nm³, Z=2, R₁=0.061 5, wR₂=0.164 4. The electrochemistry and electrocatalytic properties of the title compound were studied, and it exhibits excellent catalytic activities for NO^-₂ reduction.

Key words: hydrothermal synthesis, oxalic acid, tungsten-oxo cluster, crystal structure, electrochemistry, electrocatalytic property

CLC Number:

O611

ZHANG Zhong, YANG Lin, LI Xiaohui, WANG Zilan, WANG Jingyi. Synthesis, Crystal Structure, and Electrochemical Properties of a Ox-Functionalized Zirconium(Ⅳ) Substituted Tungsten-Oxo Cluster[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2021, 50(5): 884-888.

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