Authors: XiuLi Wang DanNa Liu HongYan Lin Na Han GuoCheng Liu
Publish Date: 2014/12/17
Volume: 25, Issue: 4, Pages: 671-679
Abstract
Three new polyoxometalates POMsbased hybrid compounds H6CuC5H5N22Mo8O27H2O2·2C5H6N2·2H2O 1 H6CoC5H5N22Mo8O27H2O2·2C5H6N2·2H2O 2 and H4C5H6N22NiOH6Mo6O18·4H2O 3 C5H6N2 = 3aminopyridine have been synthesized by selfassembly of NH46Mo7O24·4H2O C5H6N2 and different metal nitrates at different pH values The single crystal Xray diffraction IR spectra PXRD and thermogravimetric analyses have been used to characterize the title compounds Compounds 1 and 2 are isostructural 3D metal–organic frameworks with a CdSO4type topology which are constructed from infinite Mo8O27 6− inorganic chains in uncommon ABAB linking mode Compound 3 exhibits a 1D supramolecular chain derived from in situ formed Andersontype NiOH6Mo6O184− anions and 3aminopyridine via hydrogenbonding interactions The structural diversities indicate that metal ions show great effect on the construction of different POMs and final architectures The electrochemical behavior of compound 1 the photocatalytic activities of compounds 1–3 have been investigated in detailThis work was financially supported by the National Natural Science Foundation of China No 21171025 and 21471021 Program of New Century Excellent Talents in University NCET090853 and Program of Innovative Research Team in University of Liaoning Province LT2012020
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