Syntheses,structures and luminescence of two cadmium entangled coordination polymers based on bis(imidazole) and biscarboxylate ligands |
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| Affiliation: | 1. Department of Chemistry, Jahangirnagar University, Dhaka 1342, Bangladesh;2. Bangladesh Institute of Computational Chemistry and Biochemistry, 38 Green Road West, Dhaka 1205, Bangladesh;3. Institute für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität, Universitätsstr. 1, D-40225 Düsseldorf, Germany;1. School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, PR China;2. Department of Chemistry, Central China Normal University, Wuhan 430079, PR China;1. Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan;2. CREST, JST, K’s Gobancho, 7 Gobancho, Chiyoda-ku, Tokyo 102-0076, Japan;1. Institute of POM-based Materials, School of Chemistry and Chemical Engineering, Hubei University of Technology, Wuhan City, Hubei Province 430068, China;2. The Synergistic Innovation Center of Catalysis Materials of Hubei Province, China |
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| Abstract: | Two entangled coordination polymers Cd2(bib)(bdc)2]n (1) and Cd2(bib)(bda)2]n (2) were synthesized by the hydrothermal reaction (bib = 1,4-bis(2-methyl-imidazol-1-yl)butane, bdc = 1,2-benzenedicarboxylate, bda = 1,4-benzenediacetate). 1 exhibits an unusual 6-connected self-catenated 3D network based on Cd2(COO)2 dimer with the point symbol of (44·610·8). 2 exhibits a 3-fold interpenetrating 3D pcu network based on Cd2(COO)2 dimer. The different conformations of bib ligands (the anti–anti–anti conformation in 1 and gauche–anti–gauche conformation in 2) play the key role in the construction of different structures in 1 and 2. The luminescence and thermal stability were investigated. |
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