UO22+

excited state quenched by Ni2+
Moriyasu, M.; Yokoyama, Y.; Ikeda, S.
J. Inorg. Nucl. Chem. 39: 2205-9 (1977)

UO22+ quenched by Ni2+
Solvent : H2O, 1 mol/L H3PO4, 25ºC

kq = 9.4 x 105(L mol–1 s–1)

Mechanism: energy transfer
Experimental methods: conventional flash, luminescence, , luminescence
Lifetime in the absence of quencher, air saturated = 180 micro sec.

Burrows, H.D.; Formosinho, S.J.; da Graca Miguel, M.; Coelho, F.P.
J. Chem. Soc., Faraday Trans. 1 72: 163-71 (1976)

UO22+ quenched by Ni2+
Solvent : H2O, pH 2.0-2.5 (HNO3)

kq = 5.5 x 106(L mol–1 s–1)

Mechanism: reductive electron transfer
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air saturated = 1.2 micro sec. (747132)
Comments: S as NO3– salt

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