Polyhedron
Polyhedron
3 years ago

An inorganic–organic hybrid constructed from Keggin polyoxoanions and benzotriazole ligands modulated by two dinuclear silver(I) clusters

An inorganic–organic hybrid constructed from Keggin polyoxoanions and benzotriazole ligands modulated by two dinuclear silver(I) clusters
A new polyoxometalate (POM)-based inorganic–organic hybrid, [Ag4(SiMo12O40)(HBTA)8]·8H2O (1), constructed from the Keggin-type polyoxomolybdates and benzotriazole (HBTA) ligands linked by two dinuclear silver(I) clusters has been obtained and characterized by single-crystal X-ray diffraction and IR spectrum. In 1, a pair of parallel Ag2(HBTA)4 units fixed to the central [SiMo12O40]4− stick out like a barbell to support the whole structure. These clusters are extended into the wave-like layers by the strong π–π stacking interactions and hydrogen bonds. The 2D layers are further extended into a 3D supramolecular structure by means of hydrogen bonds (C4–H4⋯O10) between the nitrogen atoms of the HBTA ligands and the oxygen atoms of [SiMo12O40]4− anions. Luminescence property of 1 in CH3CN solution has been investigated. In addition, 1-CPE possesses good electrocatalytic activity toward the reduction of KNO2, H2O2 and KBrO3.

Publisher URL: www.sciencedirect.com/science

DOI: S0277538717306083

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