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On the chemiluminescence in the oxidation of tetravalent uranium to the uranyl ion by dimethyldioxirane
Author(s) -
Kazakov Dmitri V.,
Maistrenko Gulchekhrai Y.,
Polyakova Natal'ya P.,
Latypova Ramilya R.,
Kazakov Valeri P.,
Adam Waldemar,
Trofimov Alexei V.,
Zhao CongGui,
Kiefer Wolfgang,
Schlücker Sebastian
Publication year - 2002
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/bio.687
Subject(s) - dimethyldioxirane , uranyl , chemistry , chemiluminescence , uranium , decomposition , photochemistry , acetone , ion , catalysis , inorganic chemistry , radiochemistry , nuclear chemistry , medicinal chemistry , organic chemistry , materials science , metallurgy
The reaction of the tetravalent uranium [U(IV)] with dimethyldioxirane (DMD) in strongly acidic water–acetone solutions is accompanied by chemiluminescence (CL) in the visible (Vis) and infra‐red (IR) regions. At least three independent reaction pathways are involved in the U(IV)–DMD oxidation: the first entails the non‐chemiluminescent oxidation of U(IV) to the uranyl ion (UO 2 2+ ); the second involves the catalytic decomposition of DMD by U(IV) to afford singlet oxygen, as manifested by its characteristic IR‐CL; and in the third process, slow Vis‐CL (510–540 nm) is emitted, following DMD consumption. Copyright © 2002 John Wiley & Sons, Ltd.