Synthesis and structures of three d metal coordination polymers constructed from flexible polycarboxylate and 1,10-phenanthroline ligands |
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Authors: | Xiao-Li Chen Qing-Ran Wu Feng Fu Yuan-Yuan Hui Gang-Lin Xue |
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Affiliation: | a Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710069, China b School of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yanan University, Yan’an 716000, China |
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Abstract: | Three novel d10 metal coordination polymers, {[Cd(H2odpa)(phen)2]·H2O}n (1), [Cd2(odpa)(phen)(H2O)2]n (2), {[Zn4(odpa)2(phen)2(H2O)2]·H2O}n (3), (H4odpa = 4,4′-oxydiphthalic acid, phen = 1,10-phenanthroline) were obtained with different metal/ligand ratios through hydrothermal method and characterized. Compound 1 forms a one dimensional zigzag chain, in which two phen ligands chelate to one cadmium atom. Compound 2 shows a three dimensional network structure comprised of new tetranuclear cadmium clusters as the nodes and (odpa)4− anions as the linkers, exhibits an unusual topological structure. Compound 3 is an unprecedented three dimensional polymer based on octanuclear zinc clusters cross-linked by (odpa)4− anions. In 1-3, central CdII/ZnII ions and (odpa)4− ligand display completely different coordination modes and conformations. In addition, the thermal stabilities and photoluminescence properties of 1-3 were also studied. |
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Keywords: | Coordination polymers Crystal structure Polycarboxylate Luminescence |
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