Synthesis and spectroscopic properties of rare earth picrate complexes with a new biphenylamide.
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.
Guo
Yan-Ling
YL
Department of Chemistry and National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China.
Wang
Ya-Wen
YW
Liu
Wei-Sheng
WS
Dou
Wei
W
Zhong
Xia
X
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
D000577:Amides; D001713:Biphenyl Compounds; D008674:Metals, Rare Earth; D010851:Picrates