摘要
Two novel organic-inorganic heteropolyoxometalate compounds [{Cu（1,10-phen）OH}2]2[V2WaO199]·6H2O （1） and [Co（1,10-phen）3]2[V2WaO19]·5H2O （2） （1,10-phen = 1,10-phenanthroline） were hydrothermally synthesized and characterized by elemental analysis, IR spectra and single-crystal X-ray diffraction. Compound 1 contains a di-V substituted classical Lindqvist-type polyanion [V2W4O19]^4-, two dinuclear copper cations [ {Cu（1,10-phen）OH} 2]^2＋ and six water molecules of crystallization. Two dinuclear copper cations [{Cu（1,10-phen）OH}2]^2＋ con-sist of four transition metal coordination cations {Cu（1,10-phen）}^2＋, bridged by four hydroxyl groups. Meanwhile, both two dinuclear cations are grafted on the Lindqvist polyanion [V2W4O19]^4- through two terminal oxygen （0（9）） and two μ2-0xygen （O（6）） atoms. Such an unusual linking fashion is unique in the polyoxometalate chemistry. The basic framework of 2 is similar to that of 1 and contains one Lindqvist-type polyanion [V2W4O19]^4-, two six-coordinated cobalt cations [Co（1, 10-phen）3]^2＋ and five free water molecules.
Two novel organic-inorganic heteropolyoxometalate compounds [{Cu（1,10-phen）OH}2]2[V2WaO199]·6H2O （1） and [Co（1,10-phen）3]2[V2WaO19]·5H2O （2） （1,10-phen = 1,10-phenanthroline） were hydrothermally synthesized and characterized by elemental analysis, IR spectra and single-crystal X-ray diffraction. Compound 1 contains a di-V substituted classical Lindqvist-type polyanion [V2W4O19]^4-, two dinuclear copper cations [ {Cu（1,10-phen）OH} 2]^2＋ and six water molecules of crystallization. Two dinuclear copper cations [{Cu（1,10-phen）OH}2]^2＋ con-sist of four transition metal coordination cations {Cu（1,10-phen）}^2＋, bridged by four hydroxyl groups. Meanwhile, both two dinuclear cations are grafted on the Lindqvist polyanion [V2W4O19]^4- through two terminal oxygen （0（9）） and two μ2-0xygen （O（6）） atoms. Such an unusual linking fashion is unique in the polyoxometalate chemistry. The basic framework of 2 is similar to that of 1 and contains one Lindqvist-type polyanion [V2W4O19]^4-, two six-coordinated cobalt cations [Co（1, 10-phen）3]^2＋ and five free water molecules.
基金
supported by the Foundation of Education Department of Henan Province
