Syntheses, Structures and Electrochemical Investigation of a New Dawson-based Hybrid Material with Cd-BTA Coordination Polymers

摘要

A new organic-inorganic hybrid based on tungstophosphate anions and benzotriazole cations,[Na(BTA)2(H2O)2]2[{Cd(BTA)4(H2O)}2(P2W18O62)]·6H2O(1)(BTA = benzotriazole)has been synthesized in aqueous solution and characterized by elemental analysis,IR spectroscopy,thermal gravimetric analysis,and single-crystal X-ray diffraction.X-ray analysis showed that both{Na(BTA)2} and {Cd(BTA)4} units are supported on the a-Dawson polyoxoanion[P2W18O62]6- via the surface bridging oxygen atoms.The electrochemical properties of 1 in aqueous solution are studied at room temperature.It was found that 1 presents good electrocatalytic activities for the reduction of NO2-.