| In the first chapter, the concepts, the histories, the potential applications of coordination polymers, and the factors affecting the structures of the compounds are concisely introduced. At the end of this chapter, we pointed out that the importance of the search project and summarized the important results obtained in the thesis.In the second chapter, four new coordination polymers based on hfpdpt anion and biim-4 ligand, namely [Cd(Hhfpdpt)(Hbiim-4)(biim-4)0.5(H2O)]·2H2O (1), [Cd2(hfpdpt)(biim-4)0.5(H2O)2]·0.5H2O (2), [Mn2(hfpdpt)(biim-4)0.5(H2O)2]·0.5H2O (3), and [Zn2(hfpdpt)(biim-4)1.5]·(CH3CH2OH) (4), where H4hfpdpt = 4,4'-(hexafluoroisopropylidene)diphthalic acid, biim-4 = 1,4-bis(imidazolyl)butane, were synthesized under hydrothermal conditions. Compound 1 displays a 3D supramolecular structure, with a (4,5)-connected topology, while compound 2 has a 3D (5,6)-connected topology. 3 has the same (5,6)-connected topology as that of 2, however, the only difference of these two compounds is the coordination modes of the hfpdpt anion. Compound 4 exhibits a rare 3D→3D self-penetrating framework. The thermogravimetric and luminescent properties were also investigated for compounds 1, 2 and 4.In the third chapter, five new coordination polymers based on biim-5 ligand, namely [Co(o-BDC)(biim-5)] (5), [Co(m-BDC)(biim-5)]·H2O (6), [Co(5-OH-m-BDC)(biim-5)] (7), [Co(DL-Cam)(biim-5)]·4H2O (8), and [Co(BTCA)0.5(biim-5)] (9), where biim-5 = 1,5-bis(imidazolyl)pentane, H2o-BDC = 1,2-benzenedicarboxylic acid, H2m-BDC = 1,3-benzenedicarboxylic acid, H25-OH-m-BDC = 5-OH-1,3-benzenedicarboxylic acid, H2DL-Cam = DL-camphoric acid, and H4BTCA = 1,2,3,4-butanetetracarboxylic acid, were synthesized under hydrothermal conditions. Compound 5 displays a 2D 63-hcb-net. Compound 6 exhibits an uncommon 4-connected 2D layer. Compound 7 has a 2D sql net, this net is further extended by hydrogen bonds between the carboxylate O atoms and the hydroxyl groups into a 3D supramolecular framework. 8 is a 2D layer containing water tetramer. Compound 9 is relatively complex 3D framework with a rare (3,4)-connected topology. The thermal stabilities these five compounds were studied by thermogravimetric analysis.In the fourth chapter, reactions of 2,2'-bis(1-imidazolyl)ether (BIE) with different polycarboxylic acids produce thirteen new coordination polymers, namely [Ni(p-BDC)(BIE)] (10), [Cu(p-BDC)(BIE)] (11), [Cu(o-BDC)(BIE)] (12), [Cu5(m-BDC)4(μ3-O)2(BIE)2(H2O)2] (13), [Co(OX)(BIE)] (14), [Cu3(1,3,5-BTC)2(BIE)2(H2O)3] (15), [Cu(1,2,4,5-btec)0.5(BIE)] (16), [Co2(1,2,4,5-btec)(BIE)2]·H2O (17), [Co2(OA)(BIE)2]·1.5H2O (18), [Zn2(OA)(BIE)2]·2.5H2O (19), [Cd(OA)0.5(BIE)(H2O)]·H2O (20), [Zn2(hfpdpt)(BIE)2]·H2O (21), and [Cd(1,2,3,4-btec)0.5(BIE)(H2O)] (22), where H2p-bdc = 1,4-benzenedicarboxylic acid, H2o-bdc = 1,2-benzenedicarboxylic acid, H2m-bdc = 1,3-benzenedicarboxylic acid, H2OX = oxalic acid, H31,3,5-BTC = 1,3,5-benzenetricarboxylic acid, H41,2,4,5-btec = 1,2,4,5-benzenetetracarboxylic acid, H4OA = 4,4'-oxidiphthalic acid, H4hfpdpt = 4,4'-(hexafluoroisopropylidene)diphthalic acid, and H41,2,3,4-btec = 1,2,3,4-benzenetetracarboxylic acid, were synthesized under hydrothermal conditions. Compounds 10-12 are 44-sql layers. 13 exhibits anα-Po topology based on pentanuclear Cu(II) cluster. Compound 14 displays a 63-hcb layer, while 15 is a rare self-penetrating 2D network. Compound 16 is a unique Kagométopology. Compound 17 shows a rare 3,4-connected (83)2(85·10) topology with 3-connected nodes and square-planar 4-connected node. The crystal structures of 18 and 19 are close to being isostructural with a scarce (32·62·72)(32·4·62·7)2 topology. 20 contains two kinds of chiral layers, one left-handed and the other right-handed, with a unique topological type of (52·64)(53·62·7)2. Compound 21, related by a pseudo-centre of inversion, possesses a 3D porous framework. 22 shows a 1D chain structure. The structures of 10-22 are described. The thermal stabilities and the luminescent properties of 19-22 are also discussed in detail.The fifth chapter is the conclusions. |
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