Ru(bpy)32+

excited state quenched by Co(NH3)5(H2O)3+
Sandrini, D.; Gandolfi, M.T.; Maestri, M.; Bolletta, F.; Balzani, V.
Inorg. Chem. 23: 3017-23 (1984)

Ru(bpy)32+ quenched by Co(NH3)5(H2O)3+
Solvent : H2O, 0.1 mol/L H2SO4, ~22ºC

kq = 7.5 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)

Ueno, F.B.; Sasaki, Y.; Ito, T.; Saito, K.
J. Chem. Soc., Chem. Commun. : 328-9 (1982)

Ru(bpy)32+ quenched by Co(NH3)5(H2O)3+
Solvent : H2O, 0.05 mol/L H2SO4, 25ºC, ionic strength 0.25 (NaCl)

kq = 1.4 x 108(L mol–1 s–1)

Mechanism: energy transfer
Experimental methods: laser flash, luminescence, single shot signal
Comments: DeltaVact = –2.6 x 10–3 L/mol (0.1-300 MPa)

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

Ru(bpy)32+ quenched by Co(NH3)5(H2O)3+ at conc. <= 0.011 mol L–1
Solvent : H2O, 0.5 mol/L H2SO4, 25ºC

kq = 1.5 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)

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