title: Structural characterization of shielded isomeric europium complexes with metal-metal contact.
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.
authors: Department of Chemistry, The University of Hong Kong, Hong Kong SAR, People's Republic of China.
authors: Ga-Lai
authors: GL
authors: Law
authors: Ka-Leung
authors: KL
authors: Wong
authors: Yang-Yi
authors: YY
authors: Yang
authors: Qiao-Yuan
authors: QY
authors: Yi
authors: Guohua
authors: G
authors: Jia
authors: Wing-Tak
authors: WT
authors: Wong
authors: Peter A
authors: PA
authors: Tanner
mesh_terms: D005063:Europium / Q000737:chemistry*; D007536:Isomerism; D008670:Metals / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D008670:Metals; D005063:Europium