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A time‐resolved study of the mechanism of the energy transfer from a ligand to the lanthanide(III) ion in solutions and solid films
Author(s) -
Lemmetyinen H.,
Vuorimaa E.,
Jutila A.,
Mukkala VeliMatti,
Takalo Harri,
Kankare Jouko
Publication year - 2000
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/1522-7243(200011/12)15:6<341::aid-bio625>3.0.co;2-1
Subject(s) - lanthanide , chemistry , luminescence , pyridine , reaction rate constant , photochemistry , langmuir–blodgett film , absorption (acoustics) , ion , triplet state , fluorescence , ligand (biochemistry) , inorganic chemistry , materials science , organic chemistry , kinetics , molecule , biochemistry , physics , receptor , optoelectronics , quantum mechanics , composite material
The photochemical properties of some lanthanide chelates developed for immunohistochemistry have been studied in water and in solid Langmuir–Blodgett films. The fluorescence and triplet‐state lifetimes of 4‐(phenylethynyl)pyridine (PET), di[(phenylethynyl)pyridine] (D‐PET), phenylterpyridine (PTP) and their tetra‐ or penta‐acid derivatives (‐TA or ‐PA) were measured in the presence and absence of Gd(III)‐, Tb(III)‐ and Eu(III)‐ions. The mechanism for the total process and the rate constants and quantum yields for the individual reaction steps and for the total process were determined in water solution. Time‐resolved absorption and luminescence methods were also used to study the energy transfer between an amphiphilic 4‐[4‐[(C 10 H 12 ) 2 NCO]phenylethynyl]‐pyridine tetra acid (A‐PET‐TA) and the Tb(III)‐ and Eu(III)‐ions in solid Langmuir–Blodgett films. Luminescence and transient absorption rate constants were determined. Copyright © 2000 John Wiley & Sons, Ltd.