Abstract
A new polycatenated framework encapsulated Keggin-type silicotungstate crystalline compound, L0.5[Cu2L3.5(SiW12O40)] (1) (L = 1,4-bis(1-imidazol-yl)-2,5-dimethyl benzene), has been prepared by solvothermal conditions. A new 3D polycatenaned framework was obtained by the 1D track chains and 2D grid layers catenating with each other, and the Keggin-type POMs are encapsulated in host framework. Compound 1 shows a rare case of 3D polycatenated framework encapsulated Keggin-type polyoxometalate. The electrocatalytic efficiency is ca. 179.2% containing 10 mM NO2−. Meanwhile, 1-GCE shows higher specific capacitance of 159.2 F g−1 (3 A g−1) than the majority of the reported POM-based crystalline compounds.
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