Synthesis,structure and electrochemical properties of a polyoxometalate-templated compound with 2D twofold interpenetrating network |
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Authors: | Xiu-li Wang Bao Mu Hong-yan Lin Guo-cheng Liu Ai-xiang Tian Jin Li Zhen-hui Kang |
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Affiliation: | (1) Faculty of Chemistry and Chemical Engineering, Bohai University, 121000 Jinzhou, People’s Republic of China;(2) Functional Nano & Soft Materials Laboratory (FUNSOM), Soochow University, 215123 Suzhou, People’s Republic of China |
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Abstract: | A new Keggin-type polyoxometalate-based compound {[Cu2(L)4(H2O)4](PW11VIWVO40)}·16H2O (1) constructed from PW11VIWVO40 4−, N,N′-bis(4-pyridylformyl) piperazine (L) and Cu(II) has been hydrothermally synthesized and structurally characterized by elemental analyses, IR and single-crystal X-ray diffraction analysis. Single-crystal X-ray diffraction analysis reveals that the semi-rigid piperazine-based ligands L coordinate to the Cu(II) atoms to constitute a two dimensional coordination network. The 2D (4, 4) cationic layers are stacked together in a perpendicular mode, resulting in the formation of twofold interpenetrating frameworks with large cavities. The PW12 anions reside in the large cubic-like cavities, serving as non-coordinating templates. The compound 1 displays good electrocatalytic activity toward the reduction of nitrite in 1 M H2SO4 aqueous solution. |
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