title: Synthesis and spectroscopic properties of rare earth picrate complexes with a new biphenylamide.
abstract: The new ligand N-benzyl-2-{2'-[(benzyl-ethyl-carbamoyl)-methoxy]-biphenyl-2-yloxy}-N-ethyl-acetamide (L) and its complexes of rare earth picrates were synthesized. The complexes were characterized by elemental analysis, IR, UV-vis spectra and conductivity measurements. The fluorescence properties of the europium complex in solid state and in CHCl(3), ethyl acetate, acetone, acetonitrile and DMF were investigated. Under the excitation, the europium complex exhibited characteristic emissions of europium. The lowest triplet state energy level of the ligand indicates that the triplet state energy level of the ligand matches better to the resonance level of Eu(III) than Tb(III) ion.
authors.affiliation: Department of Chemistry and National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China.
authors.forename: Yan-Ling
authors.initials: YL
authors.lastname: Guo
authors.forename: Ya-Wen
authors.initials: YW
authors.lastname: Wang
authors.forename: Wei-Sheng
authors.initials: WS
authors.lastname: Liu
authors.forename: Wei
authors.initials: W
authors.lastname: Dou
authors.forename: Xia
authors.initials: X
authors.lastname: Zhong
mesh_terms: D000577:Amides / Q000138:chemical synthesis / Q000737:chemistry*; D001713:Biphenyl Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D004553:Electric Conductivity; D009682:Magnetic Resonance Spectroscopy; D008674:Metals, Rare Earth / Q000737:chemistry*; D015394:Molecular Structure; D010851:Picrates / Q000737:chemistry*; D013055:Spectrophotometry, Infrared
chemical_list: D000577:Amides; D001713:Biphenyl Compounds; D008674:Metals, Rare Earth; D010851:Picrates