Ru(bpy)32+

excited state quenched by Co(NH3)5Cl2+
Demas, J.N.; Addington, J.W.
J. Am. Chem. Soc. 98: 5800-6 (1976)

Ru(bpy)32+ quenched by Co(NH3)5Cl2+ at conc. 0.002-0.005 mol L–1
Solvent : H2O, ~21ºC, ionic strength 0 (calc'd)

kq = 7.2 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, 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)5Cl2+ at conc. 0.002-0.008 mol L–1
Solvent : H2O, 0.1 mol/L H2SO4, ~22ºC

kq = 5.8 x 108(L mol–1 s–1)

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

Dressick, W.J.; Meyer, T.J.; Durham, B.
Isr. J. Chem. 22: 153-7 (1982)

Ru(bpy)32+ quenched by Co(NH3)5Cl2+
Solvent : H2O, ~25ºC, pH 0(H2SO4)

kq = 6.7 x 108(L mol–1 s–1)

Mechanism: oxidative electron transfer
Experimental methods: emission quenching (method not specified)
Lifetime in the absence of quencher, air saturated = 0.46 micro sec.
Electron transfer fraction of quenching = 0.85

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

Ru(bpy)32+ quenched by Co(NH3)5Cl2+ at conc. <= 0.005 mol L–1
Solvent : H2O, 0.5 mol/L H2SO4, 25ºC

kq = 9.3 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. (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)5Cl2+ at conc. (3-90) x 10–4 mol L–1
Solvent : H2O, ACbuf, 25ºC, pH 4.7, ionic strength 0.01 (NaCl)

kq = 3.8 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. (84A238)

Kimura, M.; Yamashita, M.; Nishida, S.
Inorg. Chem. 24: 1527-31 (1985)

Ru(bpy)32+ quenched by Co(NH3)5Cl2+
Solvent : H2O, ACbuf, 25ºC, pH 4.8, ionic strength 0.03

kq = 2.2 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 = 0.66 micro sec. (737656)

Kimura, M.; Yamashita, M.; Nishida, S.
Inorg. Chem. 24: 1527-31 (1985)

Ru(bpy)32+ quenched by Co(NH3)5Cl2+
Solvent : H2O, ACbuf, 25ºC, pH 4.8, ionic strength 0.05

kq = 3.4 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 = 0.66 micro sec. (737656)

Kimura, M.; Yamashita, M.; Nishida, S.
Inorg. Chem. 24: 1527-31 (1985)

Ru(bpy)32+ quenched by Co(NH3)5Cl2+
Solvent : H2O, ACbuf, 25ºC, pH 4.8, ionic strength 0.2

kq = 8.2 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 = 0.66 micro sec. (737656)

Harriman, A.; Porter, G.; Walters, P.
J. Chem. Soc., Faraday Trans. 2 77: 2373-83 (1981)

Ru(bpy)32+ quenched by Co(NH3)5Cl2+
Solvent : H2O, 0.1 mol/L ACbuf, pH 5

kq = 9.3 x 108(L mol–1 s–1)

Mechanism: oxidative electron transfer
Experimental methods: steady state irradiation, luminescence

Maliyackel, A.C.; Otvos, J.W.; Spreer, L.O.; Calvin, M.
Proc. Natl. Acad. Sci. USA 83: 3572-4 (1986)

Ru(bpy)32+ quenched by Co(NH3)5Cl2+ at conc. 0.001-0.005 mol L–1
Solvent : H2O, 0.01 mol/L Pbuf, pH 7

kq = 2.0 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 = 0.6 micro sec. (78Z170)

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

Ru(bpy)32+ quenched by Co(NH3)5Cl2+
Solvent : H2O/2-PrOH (1/1), 0.5 mol/L H2SO4, 25ºC

kq = 4.6 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 = 0.87 micro sec. (laser flash, luminescence, single photon counting)

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