Ru(bpy)32+

excited state quenched by Co(NH3)63+
Demas, J.N.; Addington, J.W.
J. Am. Chem. Soc. 98: 5800-6 (1976)

Ru(bpy)32+ quenched by Co(NH3)63+ at conc. 0.002-0.009 mol L–1
Solvent : H2O, ~21ºC, ionic strength 0 (calc'd)

kq < 3 x 106(L mol–1 s–1)


Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.60 micro sec. (laser flash, luminescence, multiple shot with signal averaging)

Sandrini, D.; Gandolfi, M.T.; Maestri, M.; Bolletta, F.; Balzani, V.
Inorg. Chem. 23: 3017-23 (1984)

Ru(bpy)32+ quenched by Co(NH3)63+
Solvent : H2O, 0.1 mol/L H2SO4, ~22ºC

kq = 4.0 x 107(L mol–1 s–1)

Mechanism: oxidative electron transfer
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air saturated = 0.40 micro sec. (laser flash, luminescence, multiple shot with signal averaging)

Zahir, K.; Boettcher, W.; Haim, A.
Inorg. Chem. 24: 1966-8 (1985)

Ru(bpy)32+ quenched by Co(NH3)63+ at conc. (3-90) x 10–4 mol L–1
Solvent : H2O, 0.1 mol/L H2SO4, 25ºC

kq = 3.2 x 107(L mol–1 s–1)

Mechanism: energy transfer, oxidative electron transfer
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.60 micro sec. (84A238)

Navon, G.; Sutin, N.
Inorg. Chem. 13: 2159-64 (1974)

Ru(bpy)32+ quenched by Co(NH3)63+ at conc. 0.007 mol L–1
Solvent : H2O, 0.5 mol/L H2SO4, 25ºC

kq = ~1 x 107(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. (laser flash, luminescence, single photon counting)

Zahir, K.; Boettcher, W.; Haim, A.
Inorg. Chem. 24: 1966-8 (1985)

Ru(bpy)32+ quenched by Co(NH3)63+ at conc. (3-90) x 10–4 mol L–1
Solvent : H2O, ACbuf, 25ºC, pH 4.7, ionic strength 0.01 (NaCl)

kq = 1.5 x 107(L mol–1 s–1)

Mechanism: energy transfer, oxidative electron transfer
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.60 micro sec. (84A238)

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