Qian Guodong, Wang Minquan, L&#252; Shaozhe, Huang Shihua. SYNTHESIS,CHARACTERIZATION AND FLUORESCENCE OF Eu<sup>3+</sup>,Tb<sup>3+</sup> COMPLEXES WITH HETEROCYCLIC LIGANDS CONTAINING NITROGEN[J]. Chinese Journal of Luminescence, 1998,19(1): 60-65
Qian Guodong, Wang Minquan, L&#252; Shaozhe, Huang Shihua. SYNTHESIS,CHARACTERIZATION AND FLUORESCENCE OF Eu<sup>3+</sup>,Tb<sup>3+</sup> COMPLEXES WITH HETEROCYCLIC LIGANDS CONTAINING NITROGEN[J]. Chinese Journal of Luminescence, 1998,19(1): 60-65DOI:
SYNTHESIS,CHARACTERIZATION AND FLUORESCENCE OF Eu3+,Tb3+ COMPLEXES WITH HETEROCYCLIC LIGANDS CONTAINING NITROGEN
10-phenanthroline (Phen) were synthesized in the absolute ethanol solutions
and the fluorescence properties of the complexes were studied.With respect to Dipy
Phen has higher electron density in the conjugated system with the result of a higher orbital overlap and consequently an easier transfer of energy to the rare earth ions
which make the fluorescence intensity of Phen complexes be stronger than that of Dipy complexes.Moreover
the high resolution emission spectra of Eu
3+
measured at 77K indicate that the symmetry of Eu
3+
sites in Eu(Phen)
2
Cl
3
·2H
2
O and Eu(Dipy)
2
Cl
3
·2H
2
O is C
1
or C
2
or C
S
.
关键词
稀土有机配合物荧光性质格位对称性
Keywords
complexes of rare earthsfluorescence propertiessite symmetry