基于溶剂的结构效应构筑新颖的多金属氧酸盐超分子化合物

摘要 选用不同的溶剂并在水热合成的条件下得到了二个经典Dawson型有机无机杂化的超分子化合物，即(H2BBI)3P2W18O62?H2O (1)和H2(H2BBI)2P2W18O62?2H2O (2), (BBI为1,4-二咪唑基丁烷), 通过单晶X-射线衍射、元素分析、红外光谱、光催化, 对化合物1和2的结构和性质进行了测试和表征. X-射线单晶衍射分析表明化合物1是通过多金属氧酸盐Dawson的端氧, 有机配体BBI的N原子以及游离的水分子构筑成的新颖的三维超分子结构. 化合物2是通过改变化合物1的溶剂来转变有机配体BBI在空间的排布使化合物2结晶在手性的空间群P1. 并对化合物1和2 的光催化性质进行了研究。

Based on Solvents Effect Building Novelty Polyoxometalates Supermolecule Compounds

Abstract Two classic polyoxometalate-based compounds, (H2BBI)3P2W18O62]?H2O (1), H2(H2BBI)2P2W18O62]?2H2O (2), BBI=1, 1-(1, 4-butanediyl)-bis(imidazole), have been synthesized under different solvents. And the structure was characterized by elemental analysis, single crystal X-ray diffraction. Compound 1 was constructed into a novel 3D supermolecule though bridge oxygen atoms of Dawson type anions, N atoms of BBI organic ligands and free water molecules. Compound 2 was resulted in chiral space group P1 though changing the spatial framework of the organic ligands BBI with changing the solvent. We studied photocatalysis of the two compounds.