Three main group metal coordination polymers bearing imidazole-based dicarboxylates: Hydro(solvo)thermal syntheses, crystal structures and properties |
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| Authors: | Yong-Chao GaoQing-He Liu Fu-Wei ZhangGang Li Wen-Yue WangHui-Jie Lu |
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| Affiliation: | Department of Chemistry, Zhengzhou University, Henan 450052, PR China |
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| Abstract: | Three coordination polymers [Pb(HMIDC)]n (1), [Ba(H2MIDC)2]n (2) and {[Mg(HMIDC)(H2O)2]·H2O}n (3) (H3MIDC = 2-methyl-1H-imidazole-4,5-dicarboxylic acid) have been yielded under different hydro(solvo)thermal conditions. X-ray diffraction analysis reveals that compound 1 exhibits a 3-D framework constructed by 2-D networks joined by μ4-HMIDC2− bridges. Compound 2 also presents a 3-D structure, which is generated from 2-D layers pillared by 1-D chains along the c-axis. Compound 3 is a 1-D infinite chain and forms supramolecular layers through hydrogen bonds. The thermal and solid-state photoluminescence properties of polymers 1-3 have been determined as well. The theoretical predication of the methyl substituent effect of the ligand H3MIDC has been investigated. |
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| Keywords: | Coordination polymer Main group metal Structure Fluorescence Thermal properties |
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