Structures, Photoluminescence, and Photocatalytic Properties of Six New Metal−Organic Frameworks Based on Aromatic Polycarboxylate Acids and Rigid Imidazole-Based Synthons
Structures, Photoluminescence, and Photocatalytic Properties of Six New Metal−Organic Frameworks Based on Aromatic Polycarboxylate Acids and Rigid Imidazole-Based Synthons
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DOI：
10.1021/cg900317d
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发表时间：
2009-05
影响因子：
3.8
通讯作者：
Lili Wen;Feng Wang;Juan Feng;K. Lv;Chenggang Wang;Dongfeng Li
中科院分区：
文献类型：
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作者：
Lili Wen;Feng Wang;Juan Feng;K. Lv;Chenggang Wang;Dongfeng Li
六种金属有机配位聚合物[Cu（bdc）（bimb）]n（H2 bdc = 1，4-苯二甲酸酯; bimb = 4，4 ′-双（1-咪唑基）联苯）（1），[Cu 3（btc）2（bimb）2·（H2O）3]n（H3 btc = 1，3，5-苯三甲酸酯）（2），[M3（btc）2（bimb）2·（H2O）4]n（M = Mn 3，Co 4，Cd 5）和[Cd（btcH）（bimb）]n（6），并对其结构进行了表征。这些网络具有多种拓扑结构：化合物1具有扭曲的原始立方（α-Po）单网的三重互穿三维（3D）框架;化合物2 - 5是同构的，具有三结点4-连接的3D框架;化合物6具有二维（3，4）-连接的框架。此外，还考察了1 - 6的热稳定性以及5和6的光致发光性质。以阴离子型有机染料X3 B为模型污染物，研究了同结构化合物3和4的光催化活性，结果表明，化合物3和4在水溶液中的光催化活性较低。
Six metal−organic coordination polymers, [Cu(bdc)(bimb)]n (H2bdc = 1,4-benzenedicarboxylate; bimb = 4,4′-bis(1-imidazolyl)biphenyl) (1), [Cu3(btc)2(bimb)2·(H2O)3]n (H3btc = 1,3,5-benzenetricarboxylate) (2), [M3(btc)2(bimb)2·(H2O)4]n (M = Mn for 3, Co for 4, Cd for 5), and [Cd(btcH)(bimb)]n (6) were obtained under hydrothermal conditions and characterized structurally. The networks exhibit a variety of topologies: compound 1 exhibits a triply interpenetrating three-dimensional (3D) framework with a distorted primitive cubic (α-Po) single net; compounds 2−5 are isomorphic, which possess a trinodal 4-connected 3D framework; compound 6 has a two-dimensional (3,4)-connected framework. In addition, the thermal stabilities for 1−6 and the photoluminescence properties for 5 and 6 were examined. An anionic organic dye X3B was selected as a model pollutant in aqueous media to evaluate the photocatalytic effectiveness of isostructural compounds 3 and 4, and the results indicated compounds 3 and 4 represent rare exam...