Repozytorium

Charge transfer bands in the luminescence excitation spectra of isomeric pyridinedicarboxylic salts of europium.

Autorzy

V. F. Zolin

L. Puntus

Valentina A. Kudryashova

Vera I. Tsaryuk

Janina Legendziewicz

Paula Gawryszewska

Roman Szostak

Rok wydania

2002

Czasopismo

Journal of Alloys and Compounds

Numer woluminu

341

Strony

376-380

DOI

10.1016/S0925-8388(02)00041-5

Kolekcja

Naukowa

Język

Angielski

Typ publikacji

Artykuł

Streszczenie

The ligand–cation charge transfer band was observed in the region of 360–400 nm of the luminescence excitation spectrum of europium salt of 3,4-pyridinedicarboxylic acid but was absent in the spectra of europium 2,6- and 2,3-pyridinedicarboxylic salts. It was due to higher efficiency of the energy transfer through the charge transfer state conditioned by increased polarizability of the ligand of the former compound. Energy transfer through the excited ligand–lanthanide charge transfer state may explain the effect of the quenching of luminescence by the redox-sensitive lanthanide ions.

Słowa kluczowe

Europium, Excitation of luminescence, Luminescence, Charge transfer band, Energy transfer, Pyridinedicarboxylic salts

Adres publiczny

https://doi.org/10.1016/S0925-8388(02)00041-5

Strona internetowa wydawcy

http://www.elsevier.com

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