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A new Keggin-type heteropolyoxometalates compound built up by coordinated cadmium

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Abstract

A new Keggin-type heteropolyoxometalates compound, {[Cd(DMA)4]2(bibp)(SiW12O40)}n (1), (DMA = N, N-dimethylacetamide, bibp = 4,4′-bis(1-imidazolyl) biphenyl) has been synthesized and characterized by single-crystal X-ray diffraction, IR spectrum, elemental analysis, powder X-ray diffraction, thermogravimetric (TG) analysis and electrochemical analysis. Compound 1 is crystallized in orthorhombic with Pbca space group. The [SiW12O40]4− anions and bibp ligands are linked by coordinated Cd2+ ions alternately into a zigzag-like chain, and the chains are extended into a three-dimensional (3D) framework by the C–H···O hydrogen bonds. The cyclic voltammetry analyses show that compound 1 presences of W-centered reversible redox processes and that 1 has electrocatalytic activities towards the reduction of nitrite.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China [Grant numbers 51672271]; the National Natural Science Foundation of China [Grant numbers 21701172]; the Key Project of Science and Technology Plan of Fujian Province [Grant numbers 2014H0007]; and the Fujian University of Technology [Grant numbers GY-Z12088].

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Correspondence to Xiao-Yu Jiang.

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Xiao, H., Wu, XY., Yang, MX. et al. A new Keggin-type heteropolyoxometalates compound built up by coordinated cadmium. Chem. Pap. 73, 2165–2170 (2019). https://doi.org/10.1007/s11696-019-00738-5

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  • DOI: https://doi.org/10.1007/s11696-019-00738-5

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