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Syntheses, structures and properties of five copper coordination polymers constructed by the triazole ligand |
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| Authors: | Hong-Mei GuoXiang He Jing-Jing LiuJing Han Ming-Xing Li |
| Institution: | a Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, PR China b State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China c Department of Material Physics and Chemistry, Xi’an University of Technology, Xi’an, Shanxi 710048, PR China |
| Abstract: | Reactions of different metal salts with 4-amino-3,5-bis(3-pyridyl)-1,2,4-triazole (3-abpt) gave rise to five new complexes, namely Cu4(CN)4(3-abpt)2]n (1), CuBr(3-abpt)]n (2), CuI(3-abpt)]n (3), Cu3I3(3-abpt)]n (4) and Cu(3-abpt)(SO4)(H2O)]n (5). Compounds 1, 3, 4 and 5 are all 2D structures. Compound 1 is a double-layered polymer with an uncommon 3-nodal 3-connected (103)(102.4)4 network, 3 shows a 2D square layered structure, 4 is also a double-layered polymer with 2-nodal 4-connected (3.4.5.62.7)2(3.42.52.7) network and 5 is a 2D structure which is ultimately stacked with an ABAB repeat pattern. Compound 2 is a 1D coordination polymer which exhibits a ladder-like network. The photoluminescence of 1-2 has also been investigated. The long emission lifetimes of 1-2 could be assigned to metal-to-ligand charge transfer triple excited states MLCT]. |
| Keywords: | Triazole Coordination polymer Crystal structure Fluorescence |
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