Abstract
Three supramolecular compounds based on [P2Mo5O23]6− and Ni(II)–bim, [Ni(bim)3]3[P2Mo5O23]·2H2O (1), [Ni(Hbim)(bim)2]4[P2Mo5O23]2·3H2O (2), and [Ni(bim)(Hbim)(phen)]2[P2Mo5O23]·7H2O (3) (bim = 2,2′-biimidazole, phen = 1,10-phenanthroline), have been synthesized under hydrothermal conditions and characterized by elemental analysis, single-crystal X-ray diffraction, IR, and TG. All the compounds show 3-D supramolecular networks constructed from weak interactions among free Ni(II) complex, water, and oxygens of [P2Mo5O23]6−. Compound 3 represents the first supramolecular example integrating {Ni(bim)(Hbim)(phen)} with Strandberg-type phosphomolybdate. The compounds display good electrocatalytic activity to reduce hydrogen peroxide and intense fluorescence properties in solution at room temperature.
Graphical Abstract
Three 3-D supramolecular networks constructed from weak interactions among free Ni(II) complex, water molecule, and oxygen atoms of [P2Mo5O23]6− polyanions have been synthesized. The compounds display good electrocatalytic activity to reduce hydrogen peroxide and intensive fluorescent properties in the solution at room temperature.
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Funding
This work is supported by the National Natural Science Foundation of China [grant number 21271056], [grant number 21371042]; Specialized Research Fund for the Doctoral Program of Higher Education [grant number 20122329110001]; the Natural Science Foundation of Heilongjiang Province [grant number B201216]; Doctoral Initiation Foundation of Harbin Normal University [grant number KGB201214]; and Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University); Ministry of Education; Program for Scientific and Technological Innovation Team Construction in Universities of Heilongjiang Province [grant number 2011TD010].