On the chemiluminescence in the oxidation of tetravalent uranium to the uranyl ion by dimethyldioxirane.
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.
Kazakov
Dmitri V
DV
Institute of Organic Chemistry, Ufa Scientific Center of the Russian Academy of Sciences, 71 Pr. Oktyabrya, 450054 Ufa, Russia. chemlum@ufanet.ru
Maistrenko
Gulchekhrai Y
GY
Polyakova
Natal'ya P
NP
Latypova
Ramilya R
RR
Kazakov
Valeri P
VP
Adam
Waldemar
W
Trofimov
Alexei V
AV
Zhao
Cong-Gui
CG
Kiefer
Wolfgang
W
Schlücker
Sebastian
S
D004852:Epoxy Compounds; D007202:Indicators and Reagents; D008163:Luminescent Measurements; D009942:Organometallic Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction; D013050:Spectrometry, Fluorescence; D014501:Uranium / Q000737:chemistry*
D004852:Epoxy Compounds; D007202:Indicators and Reagents; D009942:Organometallic Compounds; D014501:Uranium; C064455:dimethyldioxirane