UO22+

excited state quenched by Fe2+
Moriyasu, M.; Yokoyama, Y.; Ikeda, S.
J. Inorg. Nucl. Chem. 39: 2205-9 (1977)

UO22+ quenched by Fe2+
Solvent : H2O, 1 mol/L HClO4, 25ºC

kq = 1.0 x 109(L mol–1 s–1)

Mechanism: reductive electron transfer
Experimental methods: conventional flash, luminescence, , luminescence
Lifetime in the absence of quencher, air saturated = 6.8 micro sec.

Moriyasu, M.; Yokoyama, Y.; Ikeda, S.
J. Inorg. Nucl. Chem. 39: 2205-9 (1977)

UO22+ quenched by Fe2+
Solvent : H2O, 1 mol/L H2SO4, 25ºC

kq = 1.8 x 109(L mol–1 s–1)

Mechanism: reductive electron transfer
Experimental methods: conventional flash, luminescence, , luminescence
Lifetime in the absence of quencher, air saturated = 11 micro sec.

Moriyasu, M.; Yokoyama, Y.; Ikeda, S.
J. Inorg. Nucl. Chem. 39: 2205-9 (1977)

UO22+ quenched by Fe2+
Solvent : H2O, 1 mol/L H3PO4, 25ºC

kq = 2.0 x 109(L mol–1 s–1)

Mechanism: reductive electron 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 Fe2+
Solvent : H2O, pH 2.0-2.5 (HNO3)

kq = 6.7 x 108(L mol–1 s–1)

Mechanism: reductive electron transfer, energy 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

Rygalov, L.N.; Chibisov, A.K.; Karyakin, A.V.; Benzrogova, E.V.; Myasoedov, B.F.; Nemodruk, A.A.
Theor. Exp. Chem. 8: 399-403 (1972)

UO22+ quenched by Fe2+ at conc. 1 x 10–4 mol L–1
Solvent : H2O, 0.5 mol/L H3PO4

kq = 4 x 107(L mol–1 s–1)

Mechanism: reductive electron transfer
Experimental methods: conventional flash, luminescence, , absorption, single shot signal

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