Structural Diversity and Properties of Six 2D or 3D Metal-Organic Frameworks Based on Thiophene-Containing Ligand

被引:28
作者
Qin, Ling [1 ]
Li, Yizhi [1 ]
Guo, Zijian [1 ]
Zheng, Hegen [1 ]
机构
[1] Nanjing Univ, State Key Lab Coordinat Chem, Sch Chem & Chem Engn, Nanjing Natl Lab Microstruct, Nanjing 210093, Jiangsu, Peoples R China
关键词
SECONDARY BUILDING UNITS; DESIGN; PHOTOLUMINESCENCE; NETS; CADMIUM(II); VERSATILITY; CHEMISTRY; POLYMERS; MOLECULE; NETWORKS;
D O I
10.1021/cg3013014
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Six new coordination polymers, {[Zn-2(DPT)(2)(btc)-(Hbtc)]center dot 2H(2)O}(n) (1), {[Cd(DPT)(Hbtc)(H2O)]center dot 4H(2)O}(n) (2), {[Co(DPT)(Hbtc)]center dot 1/2DPT}(n) (3), {[Zn(DPT)(oba)]center dot 11H(2)O}(n) (4), {[Co-2(DPT)(2)(oba)(2)]center dot DMF center dot 3H(2)O}(n) (5), and {[Zn-4(DPT)(2)(bdc)(4)(H2O)(2)]center dot 2H(2)O center dot DMA}(n) (6), have been obtained from the self-assembly of the heterocycle ligand DPT with different metal salts, in the presence of coligands (DPT = 2,5-dipyridine-thiophene, H(3)btc = 1,3,5-benzenetricarboxylate, H(2)oba = 4,4'oxybis(benzoate), H(2)bdc = 1,4-benzenedicarboxylate, DMF = N,N-dimethylformamide, DMA = N,N-dimethylacetamide). Their structures have been characterized by single crystal X-ray analysis. Compounds 1-3 are 2D motifs, of which 1 and 2 are joined via H-bond bridges to give 3D supramolecular architectures. Complex 4 is a 2D network constructed from left- and right-handed helical chains. Complex 5 has a 3-fold interpenetrating 3D pcu framework Complex 6 features a polycatened structure, which can be parallel/parallel catenated with two other equivalent bilayer ones to form a 2D -> 3D framework. The photoluminescence properties of the compounds 1, 2, 4, and 6 have been examined in solid states at room temperature, and they have been found to exhibit yellow photoluminescence. In addition, the UV-visible spectra are also depicted in detail.
引用
收藏
页码:5783 / 5791
页数:9
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