Ru(bpy)32+

excited state quenched by Co(NH3)5(py)3+
Leopold, K.R.; Haim, A.
Inorg. Chem. 17: 1753-7 (1978)

Ru(bpy)32+ quenched by Co(NH3)5(py)3+ at conc. (4.5-19) x 10–4 mol L–1
Solvent : H2O, 0.01 mol/L Pbuf, 25ºC, pH 5.6, ionic strength 0.1 (LiClO4)

kq = 1.7 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)

Boettcher, W.; Haim, A.
J. Am. Chem. Soc. 102: 1564-9 (1980)

Ru(bpy)32+ quenched by Co(NH3)5(py)3+ at conc. (5-50) x 10–4 mol L–1
Solvent : H2O, Pbuf, 25ºC, pH 5.8, ionic strength 0.10 (LiClO4)

kq = 2.1 x 108(L mol–1 s–1)

Mechanism: oxidative electron transfer
Experimental methods: steady state irradiation, quantum yield of a photoproduct
Lifetime in the absence of quencher, air free = 0.60 micro sec. (747635)
Electron transfer fraction of quenching = 0.8
Comments: see Mech. [7]

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