TY - JOUR
T1 - Effect of aromatic molecules on the photochemical reduction of the uranyl ion with triphenylphosphine
AU - Sidhu, M. S.
AU - Singh, R. J.
AU - Sarkaria, P.
AU - Sandhu, S. S.
N1 - Funding Information:
One of us (R.J.S.) thanks the Council of Scientific and Industrial Research (New Delhi) for financial assistance.
PY - 1989/2
Y1 - 1989/2
N2 - The luminescence quenching of uranyl ion with cyclohexane, benzene, toluene, anisole and nitrobenzene during its photochemical reduction with triphenylphosphine was studied. The results show that the substituents have a remarkable effect on the aromatic ring which operates in accordance with the inductive effect. Because of the positive inductive effect of the methyl and methoxy groups on the phenyl ring, there is an increased electron density for exciplex formation, and this results in a high value for physical quenching of optically excited uranyl ion with anisole; the value is low with nitrobenzene owing to the negative inductive effect of the nitro group.
AB - The luminescence quenching of uranyl ion with cyclohexane, benzene, toluene, anisole and nitrobenzene during its photochemical reduction with triphenylphosphine was studied. The results show that the substituents have a remarkable effect on the aromatic ring which operates in accordance with the inductive effect. Because of the positive inductive effect of the methyl and methoxy groups on the phenyl ring, there is an increased electron density for exciplex formation, and this results in a high value for physical quenching of optically excited uranyl ion with anisole; the value is low with nitrobenzene owing to the negative inductive effect of the nitro group.
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U2 - 10.1016/1010-6030(89)80007-3
DO - 10.1016/1010-6030(89)80007-3
M3 - Article
AN - SCOPUS:0042431316
SN - 1010-6030
VL - 46
SP - 221
EP - 226
JO - Journal of Photochemistry and Photobiology, A: Chemistry
JF - Journal of Photochemistry and Photobiology, A: Chemistry
IS - 2
ER -