title: Synthesis and Fluorescence Properties of Eu(3+), Tb(3+) Complexes with Schiff Base Derivatives.
abstract: Novel Schiff base ligands derived from N'-benzylidene-benzohydrazide (substituted by -H, -CH3, -OCH3, -Cl) and 2-chloro-N-phenylacetamide were synthesized. The solid complexes of rare earth (Eu, Tb) nitrate with these Schiff base ligands were synthesized and characterized by elemental analysis, EDTA titrimetric analysis, thermal analysis, infrared spectra and UV-Vis spectra analysis. The fluorescence properties of rare earth (Eu, Tb) complexes in solid were studied. Under the excitation of ultraviolet light, these complexes exhibited characteristic emission of europium and terbium ions. The results showed that the ligand favored energy transfer to the emitting energy of Eu and Tb ions. Effects of different ligands on the fluorescence intensity of rare earth (Eu, Tb) complexes had been discussed. The electrochemical properties of rare earth (Eu, Tb) complexes were also investigated.
authors.affiliation: School of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.|Hunan Provincial Key Laboratory for Cost-effective Utilization of Fossil Fuel Aimed at Reducing Carbon-dioxide Emissions, Changsha, 410082, China.
authors.forename: Yanhong
authors.initials: Y
authors.lastname: Liu
authors.affiliation: School of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
authors.forename: Weihua
authors.initials: W
authors.lastname: Kong
authors.affiliation: School of Chemical Engineering, Ningbo University of Technology, Ningbo, 315016, China.
authors.forename: Zehui
authors.initials: Z
authors.lastname: Yang
authors.affiliation: School of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Dai
authors.affiliation: School of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
authors.forename: Ling
authors.initials: L
authors.lastname: Shi
authors.affiliation: School of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China. dcguo2001@hnu.edu.cn.|Hunan Provincial Key Laboratory for Cost-effective Utilization of Fossil Fuel Aimed at Reducing Carbon-dioxide Emissions, Changsha, 410082, China. dcguo2001@hnu.edu.cn.
authors.forename: Dongcai
authors.initials: D
authors.lastname: Guo
keywords: Fluorescence properties; Rare earth complexes; Schiff base