Four Co(II)/Zn(II) coordination polymers with a multidentate ligand: syntheses,structures, thermal,and photoluminescent properties |
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| Authors: | Jia-Ming Li Kun-Huan He Yun-Yun Zheng Hui-Yuan Gao |
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| Institution: | 1. Guangxi Colleges and Universities Key Laboratory of Beibu Gulf Oil and Natural Gas Resource Effective Utilization, College of Petroleum and Chemical Engineering, Qinzhou University, Qinzhou, PR Chinaljmmarise@163.com;3. Guangxi Colleges and Universities Key Laboratory of Beibu Gulf Oil and Natural Gas Resource Effective Utilization, College of Petroleum and Chemical Engineering, Qinzhou University, Qinzhou, PR China;4. Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education), School of Chemistry and Pharmacy, Guangxi Normal University, Guilin, PR China |
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| Abstract: | Two pairs of isostructural transition metal coordination polymers, {Co(L)(H2O)]n} (1) and {Zn(L)(H2O)]n} (3), {Co(L)(4,4′-bipy)(H2O)]·H2O}n (2) and {Zn(L)(4,4′-bipy)(H2O)]·H2O}n (4) (H2L = N-pyrazinesulfonyl-glycine acid and 4,4′-bipy = 4,4′-bipyridine), have been synthesized and characterized by single-crystal X-ray diffraction, IR spectroscopy, elemental and thermogravimetric analyses. The structures show that 1 and 3 display 2-D polymeric grid frameworks with a 3-connected (4, 82) topology. 2 and 4 also exhibit a 2-D polymeric grid structure, but are constructed by a 4-connected (4, 4) topology. The adjacent 2-D polymeric grid frameworks for 1–4 are further linked by hydrogen bonding O–H?O interactions to form 3-D supramolecular interweaved orderly networks. The fluorescent properties of 3 and 4 were investigated in the solid state. |
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| Keywords: | Coordination polymers crystal structure N-pyrazinesulfonyl-glycine acid photoluminescent property |
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