Key Laboratory of Synthesis of Functional Materials and Green Catalysis, College of Heilongjiang Province, School of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150080, P.R. China.
Dalton Trans. 2012 Sep 7;41(33):10014-20. doi: 10.1039/c2dt30393k. Epub 2012 May 4.
Three supramolecular materials based on different poly(oxomolybdophosphate) clusters, (H(2)imi)(6)(Himi)(4)[{Sr(H(2)O)(4)}(2){Sr ⊂ P(6)Mo(4)(V)Mo(14)(VI)O(73)}(2)]·17H(2)O (1), (H(2)(4,4'-bpy))(2)[Cu(2)Sr(2)Mo(12)O(24)·(OH)(6)(H(2)O)(6)(H(2)PO(4))(2)(HPO(4))(2)(PO(4))(4)]·5H(2)O (2), and (H(2)bim)(H(2)bim)[SrP(2)Mo(5)O(23)(H(2)O)(3)]·2H(2)O (3) (imi = imidazole, 4,4'-bpy = 4,4'-bipyridine, and bim = 2,2'-biimidazole), have been hydrothermally synthesized and structurally characterized by the elemental analysis, TG, IR, UV-vis, XPS and the single-crystal X-ray diffraction. Compound 1 is made up of unusual basket-shape Sr ⊂ P(6)Mo(18)O(73) cages linked by Sr(H(2)O)(4) fragments to yield unprecedented dimeric chains, which represent the first 1-D assemblies of basket-type POMs. Compound 2 exhibits a novel string constructed from sandwich-like [Cu(P(4)Mo(6)O(31))(2)] units and {Sr(2)Cu} trinuclear linkers. Compound 3 is the first chain of Strandberg-type polyoxoanions connected by Sr(2+) cations. All the 1-D chains are further packed into various 3-D supramolecular assemblies via strong hydrogen-bonding interactions. The electrochemical and electrocatalysis behavior of 1, 2, and 3-CPE have been investigated in detail.
基于三种不同的多聚氧钼磷酸盐簇的三种超分子材料，(H(2)imi)(6)(Himi)(4)[{Sr(H(2)O)(4)}(2){Sr ⊂ P(6)Mo(4)(V)Mo(14)(VI)O(73)}(2)]·17H(2)O (1)、(H(2)(4,4'-bpy))(2)[Cu(2)Sr(2)Mo(12)O(24)·(OH)(6)(H(2)O)(6)(H(2)PO(4))(2)(HPO(4))(2)(PO(4))(4)]·5H(2)O (2)和(H(2)bim)(H(2)bim)[SrP(2)Mo(5)O(23)(H(2)O)(3)]·2H(2)O (3)（imi = 咪唑，4,4'-bpy = 4,4'-联吡啶，bim = 2,2'-联咪唑），通过元素分析、TG、IR、UV-vis、XPS 和单晶 X 射线衍射对其进行了水热合成和结构表征。化合物 1 由不常见的篮子状Sr ⊂ P(6)Mo(18)O(73)笼通过Sr(H(2)O)(4)片段连接形成，产生前所未有的二聚链，这代表了篮子型 POMs 的第一个 1-D 组装。化合物 2 展示了一种由三明治状[Cu(P(4)Mo(6)O(31))(2)]单元和{Sr(2)Cu}三核连接体组成的新型串。化合物 3 是第一个由 Sr(2+)阳离子连接的 Strandberg 型多氧阴离子链。所有的 1-D 链都通过强氢键进一步组装成各种 3-D 超分子组装体。详细研究了 1、2 和 3-CPE 的电化学和电催化行为。
