Synthesis,structures and adsorption properties of two new magnesium coordination polymers |
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| Institution: | 1. School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China;2. Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nisikyo-ku, Kyoto 615-8510, Japan;1. School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, PR China;2. Department of Chemistry, Taiyuan Normal University, Jinzhong 030619, PR China;3. Department of Biology, Taiyuan Normal University, Jinzhong 030619, PR China;1. Key Laboratory of Phytochemical R&D of Hunan Province, Hunan Normal University, Changsha 410081, PR China;2. Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Hunan Normal University, Changsha 410081, PR China;3. Maternal and Child Health Care hospital of Hunan Province, Changsha 410008, PR China;1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;2. University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | Two new magnesium coordination polymers, Mg(9,10-ADC)(H2O)2(DMF)2]n (1) and Mg6(1,4-NDC)5(HCO2)4(DMF)(H2O)]n·2nH2N(CH3)2]·2n(DMF) (2) (9,10-ADC = 9,10-anthracenedicarboxylate; 1,4-NDC = 1,4-naphthalenedicarboxylate) have been solvothermally synthesized. Compound 1 displays a one-dimensional linear chain structure, which is orderly constructed from magnesium metal cations connecting with carboxylic oxygen atoms of 9,10-H2ADC along the a axis. Compound 2 exhibits a three-dimensional framework composed of infinite chains of corner-sharing octahedral MgO6 with 1,4-NDC ligands forming one-dimensional channels along the a axis, where guest molecules reside. When guest molecules are removed, no structural transformation is found to occur, generating a robust structure with permanent porosity. The studies of CO2 absorption suggest that compound 2 is a promising adsorbent material for CO2. |
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