NDLI: Synthesis and Fluorescence Properties of Lanthanide (III) Perchlorate Complexes with Bis(benzoylmethyl) Sulfoxide

Content Provider	Springer Nature Link
Author	Li, Wen Xian Guo, Lei Chen, Li Juan Shi, Xiao Yan
Copyright Year	2008
Abstract	A ligand with two carbonyl groups and one sulfinyl group has been synthesized by a new method and its several lanthanide (III) complexes were synthesized and characterized by element analysis, molar conductivity, coordination titration analysis, IR, TG-DSC, $^{1}$H NMR and UV spectra. The results indicated that the composition of these complexes is REL$_{5}$(ClO$_{4}$)$_{3}$·3H$_{2}$O (RE = La(III), Pr(III), Eu(III), Tb(III), Yb(III), L = C$_{6}$H$_{5}$COCH$_{2}$SOCH$_{2}$COC$_{6}$H$_{5}$). The fluorescent spectra illustrate that both the Tb (III) and Eu (III) complexes display characteristic metal-centered fluorescence in solid state, indicating the ligand favors energy transfer to the excitation state energy level of them. However, the Tb (III) complex displays more effective luminescence than the Eu (III) complex, which is attributed to especial effectively in transferring energy from the average triplet energy level of the ligands (T) onto the excited state ($^{5}$D$_{4}$) of Tb (III) than that ($^{5}$D$_{0}$) of Eu (III), showing a good antenna effect for Tb(III) luminescence. The phosphorescence spectra and the relationship between fluorescence lifetimes and fluorescence intensities were also discussed.
Starting Page	1043
Ending Page	1049
Page Count	7
File Format	PDF
ISSN	10530509
Journal	Journal of Fluorescence
Volume Number	18
Issue Number	6
e-ISSN	15734994
Language	English
Publisher	Springer US
Publisher Date	2008-02-13
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Rare earth complexes Fluorescence Phosphorescence Fluorescence lifetime Bis(benzoylmethyl) sulfoxide Analytical Chemistry Biochemistry Biotechnology Biophysics/Biomedical Physics Biomedicine general
Content Type	Text
Resource Type	Article
Subject	Sociology and Political Science Spectroscopy Law Biochemistry Clinical Biochemistry Clinical Psychology

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