UO22+ excited state quenched by Ag+

UO₂²⁺ quenched by Ag⁺ at conc. <= 3 x 10^–4 mol L^–1
Solvent : H₂O, 25ºC, ionic strength 0.019 (NaNO₃)

k_q = 9.7 x 10⁸(L mol^–1 s^–1)
Activation energy = 22 (6-20 ºC)(kJ mol^–1)

Mechanism: reductive electron transfer
Experimental methods: spark lamp, luminescence, single photon counting
Lifetime in the absence of quencher, unknown oxygen content = 1.3 micro sec.
Comments: S as NO₃^– salt

UO₂²⁺ quenched by Ag⁺ at conc. <= 4 x 10^–4 mol L^–1
Solvent : H₂O, 25ºC, ionic strength 0.034 (NaNO₃)

k_q = 1.0 x 10⁹(L mol^–1 s^–1)
Activation energy = 21 (16-36 ºC)(kJ mol^–1)

Mechanism: reductive electron transfer
Experimental methods: spark lamp, luminescence, single photon counting
Lifetime in the absence of quencher, unknown oxygen content = 1.3 micro sec.
Comments: S as NO₃^– salt

UO₂²⁺ quenched by Ag⁺ at conc. <= 4 x 10^–4 mol L^–1
Solvent : H₂O, 25ºC, ionic strength 0.06 (NaNO₃)

k_q = 1.2 x 10⁹(L mol^–1 s^–1)
Activation energy = 20 (16-34 ºC)(kJ mol^–1)

Mechanism: reductive electron transfer
Experimental methods: spark lamp, luminescence, single photon counting
Lifetime in the absence of quencher, unknown oxygen content = 1.2 micro sec.
Comments: S as NO₃^– salt

UO₂²⁺ quenched by Ag⁺ at conc. <= 4 x 10^–4 mol L^–1
Solvent : H₂O, 25ºC, ionic strength 0.1 (NaNO₃)

k_q = 1.6 x 10⁹(L mol^–1 s^–1)
Activation energy = 19 (16-36 ºC)(kJ mol^–1)

Mechanism: reductive electron transfer
Experimental methods: spark lamp, luminescence, single photon counting
Lifetime in the absence of quencher, unknown oxygen content = 1.2 micro sec.
Comments: S as NO₃^– salt

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

k_q = 4.3 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.

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

k_q = 4.9 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.

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

k_q = 3.3 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.

UO₂²⁺ quenched by Ag⁺
Solvent : H₂O, pH 2.3, ionic strength 0.007

k_q = 1.2 x 10⁹(L mol^–1 s^–1)

Mechanism: reductive electron transfer
Experimental methods: laser flash, luminescence, single shot signal
Lifetime in the absence of quencher, air saturated = 1.5 micro sec.
Comments: S as NO₃^– salt

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

k_q = 3.5 x 10⁹(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

UO₂²⁺ quenched by Ag⁺
Solvent : H₂O, 1 mol/L H₃PO₄, ionic strength 0.09

k_q = 3.9 x 10⁹(L mol^–1 s^–1)

Mechanism: reductive electron transfer
Experimental methods: laser flash, luminescence, single shot signal
Lifetime in the absence of quencher, air saturated = 160 micro sec.
Comments: S as NO₃^– salt

UO₂²⁺ quenched by Ag⁺
Solvent : H₂O, 1 mol/L HNO₃, ionic strength 1

k_q = 1.9 x 10⁹(L mol^–1 s^–1)

Mechanism: reductive electron transfer
Experimental methods: laser flash, luminescence, single shot signal
Lifetime in the absence of quencher, air saturated = 2.8 micro sec.
Comments: S as NO₃^– salt