A Polyoxometalate Compound with 1D Chain Built up of Lacunary Wells-Dawson Polyoxotungstate and Eu(Ⅲ)

【中文摘要】 在水溶液条件下以六缺位的[H2P2W12O48)]12-和Eu髥为反应前躯体得到了1个新的多金属氧酸盐化合物[Eu3(H2O)17(α2-HP2W17O61)].5H2O(1),对其进行了元素分析、红外光谱、热重、荧光等表征,并用X-射线单晶衍射测定了它的晶体结构。化合物1含有双支撑的多阴离子簇[{Eu(H2O)7}2{Eu(H2O)3(α2-P2W17)}2]8-,并进一步通过Eu髥连接形成了延c轴方向的一维链。室温条件下的荧光光谱研究表明:化合物1显示了强的红光发射。 【英文摘要】 A polyoxometalate compound built on lacunary Wells-Dawson polyoxotungstate and Eu(Ⅲ) cation,[Eu 3(H 2 O) 17(α 2-HP 2 W 17 O 61)]·5H 2 O(1),has been synthesized by conventional solution method and characterized by elemental analysis,IR spectroscopy and single crystal X-ray diffraction.Compound 1 shows a bisupporting polyoxometalate cluster structure where two {Eu(H 2 O) 7 } 2 3+ fragments are supported on the polyoxometalate [{Eu(H 2 O) 3(α 2-P 2 W 17)} 2 ] 14-.1 displays a 1D chain structure built up of bis..

Construction of Organic-Inorganic Hybrid from Dawson-Type Tungstophosphate and Tetranuclear Copper Complex

通过水热合成得到了一个新颖的包含四核铜配合物的无机-有机杂化化合物[CuCl(H2O)4)][CuCl(H2O)(PHEn)][{(CuPHEn)2Cl2}2(bdC)]2[P2W18O62]·5H2O(1)(PHEn=1,10-PHEnAnTHrOlInE和bdC=1,4-bEnzEnEdICArbOXylATE),对其进行了元素分析、红外光谱、热重、电化学等表征,并用X-射线单晶衍射测定了它的晶体结构。化合物1含有由Cl和bdC桥连的四核铜配合物阳离子[{(CuPHEn)2Cl2}2(bdC)]2+。此外,化合物1的电化学研究表明其对亚硝酸的还原具有很好的电催化活性。A novel hybrid compound [CuCl(H2O)4)] [CuCl(H2O)(Phen)] [{(CuPhen)2Cl2}2(bdc)]2[P2W18O62]·5H2O(1)(Phen=1,10-phenanthroline and bdc=1,4-benzenedicarboxylate), containing multinuclear CuⅡcomplex cations, has been obtained in hydrothermal conditions and characterized by IR, elemental, thermogravimetric, electrochemical and single-crystal X-ray diffraction analysis.The main structural feature to this compound is the copper-Phen complex moieties which compose new tetranuclear copper-Phen complex cation [{(CuPhen)2Cl2}2(bdc)]2+bridged by Cl and bdc ligands.Furthermore, a compound 1-modiffied carbon paste electrode(1-CPE) displays the good electrocatalytic activity toward the reduction of nitrite.CCDC: 952036