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A luminescene study of Eu(III) and Tb(III) complexes with aminopolycarboxylic acid ligands

✍ Scribed by Stefan Lis; Jerzy Konarski; Zbigniew Hnatejko; Marian Elbanowski

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
580 KB
Volume
79
Category
Article
ISSN
1010-6030

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✦ Synopsis

The luminescence of Eu(II1) and Tb(111) complexes with eight aminopolycarboKylic acids (APA) in aqueous solution is reported. The ratio of the luminescence intensity of the Eu(II1) ion (q=Is,s JZsssu?) was analysed and a linear temperature dependence was found. An analysis of the Th(III) I uminescence intensrty (h -545 nm) yielded a linear correlation between the Tb(II1) intensity and the hydration number of the Tb-APA complex.

On the basis of the luminescence intensities, a theoretical model has been proposed within the electrostatic dipole approximation.

In the model the luminescence intensity of a given electronic transition is dependent on the dipole moment.

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