Photochemical reduction of uranyl ion with triaryl phosphites in an anhydrous medium

M. S. Sidhu; P. V.K. Bhatia; R. J. Singh

doi:10.1007/BF02162987

Photochemical reduction of uranyl ion with triaryl phosphites in an anhydrous medium

M. S. Sidhu, P. V.K. Bhatia, R. J. Singh

Laboratory Medicine and Pathology

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Abstract

Uranyl ion is photochemically reduced to uranium(V) with triphenyl phosphite, tri-o-tolyl phosphite and tri-m-tolyl phosphite in the presence of trimethylacetic acid in dry acetone. Spectroscopic techniques have revealed the primary process involves an electron transfer mechanism followed by uranyl oxygen atom transfer to phosphorus (III). Quantum yields and Stern-Volmer quenching constant measurements exhibit competition between photochemical and photophysical annihilation of optically excited uranyl ion with triaryl phosphites in non-aqueous medium.

Original language	English (US)
Pages (from-to)	355-365
Number of pages	11
Journal	Journal of Radioanalytical and Nuclear Chemistry Letters
Volume	188
Issue number	5
DOIs	https://doi.org/10.1007/BF02162987
State	Published - Nov 1994

ASJC Scopus subject areas

Analytical Chemistry
Nuclear Energy and Engineering
Radiology Nuclear Medicine and imaging
Pollution
Spectroscopy
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

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10.1007/BF02162987

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abstract = "Uranyl ion is photochemically reduced to uranium(V) with triphenyl phosphite, tri-o-tolyl phosphite and tri-m-tolyl phosphite in the presence of trimethylacetic acid in dry acetone. Spectroscopic techniques have revealed the primary process involves an electron transfer mechanism followed by uranyl oxygen atom transfer to phosphorus (III). Quantum yields and Stern-Volmer quenching constant measurements exhibit competition between photochemical and photophysical annihilation of optically excited uranyl ion with triaryl phosphites in non-aqueous medium.",

author = "Sidhu, {M. S.} and Bhatia, {P. V.K.} and Singh, {R. J.}",

year = "1994",

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AU - Singh, R. J.

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AB - Uranyl ion is photochemically reduced to uranium(V) with triphenyl phosphite, tri-o-tolyl phosphite and tri-m-tolyl phosphite in the presence of trimethylacetic acid in dry acetone. Spectroscopic techniques have revealed the primary process involves an electron transfer mechanism followed by uranyl oxygen atom transfer to phosphorus (III). Quantum yields and Stern-Volmer quenching constant measurements exhibit competition between photochemical and photophysical annihilation of optically excited uranyl ion with triaryl phosphites in non-aqueous medium.

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Photochemical reduction of uranyl ion with triaryl phosphites in an anhydrous medium

Abstract

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