title: Terminal group effects on the fluorescence spectra of Eu(III) nitrate complexes with a family of amide-based 1,10-phenanthroline derivatives.
abstract: Four ligands 1,10-phenanthroline-5,6-bis(N,N-dibenzyl-1'-oxopropylamide) (La) 1,10-phenanthroline-5,6-bis(N-methyl-N-benzyl-1'-oxopropylamide) (Lb) 1,10-phenanthroline-5,6-bis(N-benzyl-1'-oxopropylamide) (Lc) and 1,10-phenanthroline-5,6-bis(N,N-diethyl-1'-oxopropylamide) (Ld), and their lanthanide(III) (La and Eu) complexes were synthesized. The complexes were characterized by elemental analysis, IR, fluorescence spectroscopy and conductivity. The lanthanide atoms are coordinated by O atoms from C=O, Ar-O -C and N atoms from phen With the difference of the ligands, the fluorescent intensities of the Eu(III) complexes vary regularly in the THF solution. Some factors that influence the fluorescent intensity were discussed.
authors.affiliation: Department of Chemistry and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
authors.forename: Su-Wen
authors.initials: SW
authors.lastname: Chen
authors.forename: Yu-Liang
authors.initials: YL
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Dou
authors.forename: Ya-Wen
authors.initials: YW
authors.lastname: Wang
authors.forename: Wei-Sheng
authors.initials: WS
authors.lastname: Liu
mesh_terms: D000577:Amides / Q000737:chemistry*; D005063:Europium / Q000737:chemistry*; D009566:Nitrates / Q000737:chemistry*; D010618:Phenanthrolines / Q000138:chemical synthesis / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D000577:Amides; D009566:Nitrates; D010618:Phenanthrolines; D005063:Europium