期刊
CRYSTAL GROWTH & DESIGN
卷 9, 期 11, 页码 4660-4673出版社
AMER CHEMICAL SOC
DOI: 10.1021/cg900460k
关键词
-
资金
- National Natural Science Foundation of China [20471014]
- New Century Excellent Talents in Chinese University [NCET-05-0320]
- Program for Changjiang Scholars and Innovative Research Teams in Chinese University
- China Postdoctoral Science Foundation [20080431050, 200801352]
- Northeast Normal University
- NENU'S Scientific Innovation Project
Ten new coordination polymers constructed from two structurally related ligands, 1,1'-(1,5-pentanedidyl)bis-(imidazole) (biim-5) and 2,2'-bis(1H-imidazolyl)ether (BIE), have been synthesized: [Co(L1)(biim-5)] (1), [Co(L2)(biim-5)]center dot H2O (2), [Co(L3)(biim-5)] (3), [Co(L4)(biim-5)]center dot 4H(2)O (4). [Co(L5)(0.5)(biim-5)] (5), [Co-2(L6)(BIE)(2)]center dot 1.5H(2)O (6), [Zn-2(L6)(BIE)2]center dot 2.5H(2)O (7), [Cd(L6)(0.5)(BIE)(H2O)]center dot H2O (8), [Zn-2(L7)(BIE)(2)]center dot H2O (9) and [Cd(L8)(0.5)(BIE)(H2O)] (10), where H(2)L1 = 1,2-benzenedicarboxylic acid, H(2)L2 = 1,3-benzenedicarboxylic acid, H(2)L3 = 5-OH-1,3-benzenedicarboxylic acid, H(2)L4 = DL-camphoric acid, H(4)L5 = 1,2,3,4-butanetetracarboxylic acid, H(4)L6 = 4,4'-oxidiphthalic acid, H(4)L7 = 4,4'-(hexafluoroisopropylidene)diphthalic acid, and H(4)L8 = 1,2,3,4-benzenetetracarboxylic acid. Compounds 1 and 4 display the same 2D layer structures with 6(3)-hcb nets, but in 4 the water tetramers extend the layers to a 3D supramolecular framework by intermolecular hydrogen bonds. Compound 2 is an uncommon example of 2D double layers with the Schlafli symbol of (4(2) . 6(3) . 8). 3 shows a 2D sql net with large open windows. while 5 exhibits a rare 3,4-connected (8(3))(2) (8(5).10) topology. The crystal structures of 6 and 7 are close to being isostructural with a scarce (3(2) . 6(2) . 7(2)) (3(2) . 4 . 6(2) . 7)(2) topology. 8 contains two kinds of chiral layers, one left-handed and the other right-handed, with a unique topological type of (5(2) . 6(4))(5(3) . 6(2) . 7)(2), Compound 9, related by a pseudocenter of inversion, possesses a 3D porous framework with a (3,4)-connected (4 . 10(2))(2)(4(2) . 10(4))-dmd-net. 10 shows a 1D chain structure. The structural and topological differences of these ten compounds indicate that the polycarboxylate ligands play important roles in producing novel frameworks and topologies of the coordination complexes. The infrared spectra and thermogravimetric and luminescent properties were also investigated for the compounds.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据