Structural characterization of shielded isomeric europium complexes with metal-metal contact |
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| Authors: | Law Ga-Lai Wong Ka-Leung Yang Yang-Yi Yi Qiao-Yuan Jia Guohua Wong Wing-Tak Tanner Peter A |
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| Institution: | Department of Chemistry, The University of Hong Kong, Hong Kong SAR, People's Republic of China. |
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| Abstract: | New luminescent isomeric europium(III) complexes with carboxylic carbonyl group coordination (I and II) have been prepared by solvothermal synthesis using the ligand 2,2'-bipyridine-4,4'-dicarboxylic acid (bpdc), with the nonradiatively shielded Eu3+ coordination sphere completed by dimethyl sulfoxide ligands. The room temperature IR spectra and Eu3+ luminescence spectra do not provide a definitive distinction between I and II, but low-temperature luminescence can give a clear identification. |
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