title: Synthesis, characterization and luminescent properties of new highly luminescent organic ligand and complexes of trivalent rare earth.
abstract: A novel ligand with two carboxylic groups has been synthesized. The composition and structure of the ligand were characterized by IR, (1)H NMR and MS spectrometry. The highly luminescent intensity complexes were prepared with the ligand and phen. The IR, solid state (13)C NMR and fluorescent spectra of the complex were studied. IR absorption spectra indicate that the ligand is coordinated to the Eu(3+) ion, and chemical bonds are formed between Eu(3+) ion and nitrogen atoms of phen. The fluorescent spectra illustrate that the complex has an excellent luminescence, indicating the ligand favors energy transfer to the emitting energy level of Eu(3+). The influences of pH and reaction solvent on the fluorescence intensity of the complex were also discussed.
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 200051, PR China.
authors.forename: Peng
authors.initials: P
authors.lastname: Xi
authors.forename: XiaoHua
authors.initials: X
authors.lastname: Gu
authors.forename: CaoFeng
authors.initials: C
authors.lastname: Chen
authors.forename: YuXian
authors.initials: Y
authors.lastname: He
authors.forename: XiangAn
authors.initials: X
authors.lastname: Huang
mesh_terms: D004735:Energy Transfer; D006863:Hydrogen-Ion Concentration; D008024:Ligands; D049449:Luminescence; D009682:Magnetic Resonance Spectroscopy; D008674:Metals, Rare Earth / Q000138:chemical synthesis* / Q000737:chemistry*; D010618:Phenanthrolines / Q000138:chemical synthesis* / Q000737:chemistry*; D012997:Solvents; D013050:Spectrometry, Fluorescence; D013055:Spectrophotometry, Infrared
chemical_list: D008024:Ligands; D008674:Metals, Rare Earth; D010618:Phenanthrolines; D012997:Solvents