Os(bpy)32+

excited state quenched by FeIII(cytochrome c)
Cho, K.C.; Che, C.M.; Cheng, F.C.; Choy, C.L.
J. Am. Chem. Soc. 106: 6843-4 (1984)

Os(bpy)32+ quenched by FeIII(cytochrome c) at conc. (1-10) x 10–5 mol L–1
Solvent : H2O, Pbuf, pH 7

kq > 5 x 109(L mol–1 s–1)

Mechanism: oxidative electron transfer
Experimental methods: laser flash, absorption, multiple shot with signal averaging
Lifetime in the absence of quencher, air free = 0.019 micro sec. (80E040)
Comments: 10.6% of Q as FeII

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