Enhancement of Eu3+emission in solution by bulky chelating ligands and deuterium substitution | Zendy

Mohammed A. Zaitoun | Zendy

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Enhancement of Eu³⁺emission in solution by bulky chelating ligands and deuterium substitution

Author(s) -

Mohammed A. Zaitoun

Publication year - 2002

Publication title -

journal of spectroscopy

Language(s) - English

Resource type - Journals

eISSN - 2314-4920

pISSN - 2314-4939

DOI - 10.1155/2002/268705

Subject(s) - chelation , quenching (fluorescence) , europium , chemistry , deuterium , ligand (biochemistry) , ion , luminescence , emission spectrum , absorption (acoustics) , photochemistry , inorganic chemistry , fluorescence , spectral line , materials science , organic chemistry , receptor , atomic physics , biochemistry , physics , optoelectronics , quantum mechanics , composite material , astronomy

Binding the europium ion with a bulky chelating ligand provides one strategy for minimizing the quenching effects of water on the luminescence of the ion. 1,4,8,11-tetraazacyclotetradecane-1,4,8,11-tetraaceticacid tetrahydrochloride (TTT) was used as a chelating agent to isolate Eu 3+ from hydroxyl deactivation in water. A large enhancement in the Eu 3+ emission was observed for the chelated Eu 3+ compared to the unchelated. Absorption and emission spectra are reported together with lifetime measurements. The latter were used to study concentration quenching and quenching by water.

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