Syntheses, characterizations and properties of five new metal–organic complexes based on flexible ligand 4,4′-(phenylazanediyl)dibenzoic acid
Syntheses, characterizations and properties of five new metal–organic complexes based on flexible ligand 4,4′-(phenylazanediyl)dibenzoic acid
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DOI：
10.1039/c2ce26521d
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发表时间：
2013
期刊：
影响因子：
3.1
通讯作者：
Jian-liang Zhou;Yuan‐yuan Wang;L. Qin;Mingdao Zhang;Qingxiang Yang;Hegen Zheng
中科院分区：
文献类型：
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作者：
Jian-liang Zhou;Yuan‐yuan Wang;L. Qin;Mingdao Zhang;Qingxiang Yang;Hegen Zheng
在水热条件下，在CH3CN-H2O、DMF-CH3CH2OH-H2O和DMA-H2O中合成了五个新的金属有机骨架，分别为：[ZnL(Bimx)0.5]n(1)，{[Col(4，4‘-bipy)]·DMF}n(2)，{[CDL(4，4’-bipy)]·DMF}n(3)，{[ZnL(Bibp)]·DMA·(H2O)2}n(4)，{[COL(Bpyb)0.5]·(H2O)2}n(5)(bimx=1，4-双(咪唑-1-甲基)苯，4，4‘-biby=4，4-吡啶，biBP=4，4’-双(咪唑-1-基)联苯，bpyb=1，4-双(4-吡啶)苯，H_2L=4，4‘-(苯基氮杂二基)二苯甲酸。用元素分析、红外光谱、热重和X-射线单晶衍射法对其结构进行了表征。在化合物1、2和3中，BIMX、4，4‘-BPY和L2−阴离子作为双齿配体与金属阳离子组装形成二维(2D)片层。这些薄片以ABAB方式堆叠在一起，并累积成3D框架。化合物4具有类似于CDS拓扑结构的具有{65·8}拓扑网络的3D-→-3D四重互穿结构。化合物5还显示了具有{44·610·8}拓扑的三维结构。研究了其室温固相光化学性质。详细讨论了化合物1、3和4的发光性质。对化合物2和5的紫外-可见吸收光谱进行了测试和讨论。此外，还对化合物5的磁性能进行了测试和简单分析。
Five new metal–organic frameworks have been synthesized under hydrothermal conditions, in CH3CN–H2O, DMF–CH3CH2OH–H2O and DMA–H2O, namely, [ZnL(bimx)0.5]n (1), {[CoL(4,4′-bipy)]·DMF}n (2), {[CdL(4,4′-bipy)]·DMF}n (3), {[ZnL(bibp)]·DMA·(H2O)2}n (4), {[CoL(bpyb)0.5]·(H2O)2}n (5) (bimx = 1,4-bis(imidazol-1-ylmethyl)benzene, 4,4′-biby = 4,4-pyridine, bibp = 4,4′-bis(imidazol-1-yl)biphenyl, bpyb = 1,4-bis(4-pyridyl)benzene, H2L = 4,4′-(phenylazanediyl)dibenzoic acid. These complexes were characterized by elemental analysis, IR spectroscopy, TG and X-ray single-crystal diffraction. In compounds 1, 2 and 3, the bimx, 4,4′-bipy and L2− anions act as bidentate ligands assembling with metal cations to form two-dimensional (2D) sheets. The sheets are stacked in ABAB fashion and accumulate into a 3D framework. Compound 4 possesses a 3D→3D 4-fold interpenetrating architecture with {65·8} topological net, which is similar to the cds topology. Compound 5 also displays a 3D structure with {44·610·8} topology. The photochemical properties were investigated in the solid state at room temperature. The luminescent properties of compounds 1, 3 and 4 are discussed in detail. The UV-vis absorption spectra of compounds 2 and 5 are tested and discussed. In addition, the magnetic properties of compound 5 also are tested and simply analyzed.