Ru(bpy)32+

excited state quenched by Co(bpy)32+
Liu, D.K.; Brunschwig, B.S.; Creutz, C.; Sutin, N.
J. Am. Chem. Soc. 108: 1749-55 (1986)

Ru(bpy)32+ quenched by Co(bpy)32+
Solvent : Acetonitrile, 0.01 mol/L TEAP, 25ºC

kq = 8 x 107(L mol–1 s–1)

Mechanism: oxidative electron transfer; energy transfer?
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.85 micro sec. (laser flash, luminescence, single shot signal)

Liu, D.K.; Brunschwig, B.S.; Creutz, C.; Sutin, N.
J. Am. Chem. Soc. 108: 1749-55 (1986)

Ru(bpy)32+ quenched by Co(bpy)32+
Solvent : Acetonitrile, 0.1 mol/L TEAP, 25ºC

kq = 1.1 x 108(L mol–1 s–1)

Mechanism: oxidative electron transfer, energy transfer?
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.85 micro sec. (laser flash, luminescence, multiple shot with signal averaging)

Krishnan, C.V.; Brunschwig, B.S.; Creutz, C.; Sutin, N.
J. Am. Chem. Soc. 107: 2005-15 (1985)

Ru(bpy)32+ quenched by Co(bpy)32+
Solvent : H2O, 0.16 mol/L Na2SO4, Pbuf, 25ºC, pH 7.8, ionic strength 0.5, [CoII]/[L] = 0.2

kq = 6.3 x 108(L mol–1 s–1)

Mechanism: oxidative electron transfer, energy transfer
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.60 micro sec. (766404)

Krishnan, C.V.; Brunschwig, B.S.; Creutz, C.; Sutin, N.
J. Am. Chem. Soc. 107: 2005-15 (1985)

Ru(bpy)32+ quenched by Co(bpy)32+
Solvent : H2O, 0.025 mol/L Pbuf, 25ºC, pH 8.0, ionic strength 0.03 (NaCl), [CoII]/[L] = 0.2

kq = 2.8 x 108(L mol–1 s–1)

Mechanism: oxidative electron transfer
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.60 micro sec. (766404)

Krishnan, C.V.; Brunschwig, B.S.; Creutz, C.; Sutin, N.
J. Am. Chem. Soc. 107: 2005-15 (1985)

Ru(bpy)32+ quenched by Co(bpy)32+
Solvent : H2O, 0.17 mol/L Na2SO4, 0.025 mol/L Pbuf, 25ºC, pH 8.0, [CoII]/[L] = 0.2

kq = 6.8 x 108(L mol–1 s–1)

Mechanism: oxidative electron transfer, energy transfer
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.60 micro sec. (766404)

Krishnan, C.V.; Brunschwig, B.S.; Creutz, C.; Sutin, N.
J. Am. Chem. Soc. 107: 2005-15 (1985)

Ru(bpy)32+ quenched by Co(bpy)32+
Solvent : H2O, 0.5 mol/L NaCl, 0.025 mol/L Pbuf, 25ºC, pH 8.0, [CoII]/[L] = 0.2

kq = 1.0 x 109(L mol–1 s–1)

Mechanism: oxidative electron transfer, energy transfer
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.60 micro sec. (766404)

Krishnan, C.V.; Brunschwig, B.S.; Creutz, C.; Sutin, N.
J. Am. Chem. Soc. 107: 2005-15 (1985)

Ru(bpy)32+ quenched by Co(bpy)32+
Solvent : H2O, 0.5 mol/L NaBr, 0.025 mol/L Pbuf, 25ºC, pH 8.0, [CoII]/[L] = 0.2

kq = 1.4 x 109(L mol–1 s–1)

Mechanism: oxidative electron transfer, energy transfer
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.60 micro sec. (766404)

Krishnan, C.V.; Brunschwig, B.S.; Creutz, C.; Sutin, N.
J. Am. Chem. Soc. 107: 2005-15 (1985)

Ru(bpy)32+ quenched by Co(bpy)32+
Solvent : H2O, 0.025 mol/L Pbuf, 25ºC, pH 8.0, ionic strength 1.5 (NaCl), [CoII]/[L] = 0.2

kq = 1.2 x 109(L mol–1 s–1)

Mechanism: oxidative electron transfer
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.60 micro sec. (766404)

Krishnan, C.V.; Brunschwig, B.S.; Creutz, C.; Sutin, N.
J. Am. Chem. Soc. 107: 2005-15 (1985)

Ru(bpy)32+ quenched by Co(bpy)32+
Solvent : H2O, 0.05 mol/L Pbuf, 25ºC, pH 8.0, [CoII]/[L] = 0.2

kq = 2.8 x 107(L mol–1 s–1)

Mechanism: oxidative electron transfer, energy transfer
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.60 micro sec. (766404)

back...