Os(5-Clphen)32+

excited state quenched by Fe(CN)64–
Rybak, W.; Haim, A.; Netzel, T.L.; Sutin, N.
J. Phys. Chem. 85: 2856-60 (1981)

Os(5-Clphen)32+ quenched by Fe(CN)64– at conc. <= 0.005 mol L–1
Solvent : H2O, 25ºC, ionic strength 0.001 (NaCl)

kq = 1.7 x 1010(L mol–1 s–1)

Mechanism: reductive electron transfer
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.066 micro sec. (laser flash, luminescence, multiple shot with signal averaging)
Comments: some static quenching, see Mech. [11]

Rybak, W.; Haim, A.; Netzel, T.L.; Sutin, N.
J. Phys. Chem. 85: 2856-60 (1981)

Os(5-Clphen)32+ quenched by Fe(CN)64– at conc. <= 0.006 mol L–1
Solvent : H2O, 25ºC, ionic strength 0.1 (NaCl)

kq = 3.2 x 109(L mol–1 s–1)

Mechanism: reductive electron transfer
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.066 micro sec. (laser flash, luminescence, multiple shot with signal averaging)
Comments: some static quenching, see Mech. [11]

Creutz, C.; Chou, M.; Netzel, T.L.; Okumura, M.; Sutin, N.
J. Am. Chem. Soc. 102: 1309-19 (1980)

Os(5-Clphen)32+ quenched by Fe(CN)64– at conc. <= 0.005 mol L–1
Solvent : H2O, 25ºC, ionic strength 1.0 (NaCl)

kq = 2.8 x 108(L mol–1 s–1)


Experimental methods: laser flash, luminescence, single shot signal
Lifetime in the absence of quencher, air free = 0.078 micro sec.

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