Pt2[mu-diphosphito(2-)-P,P']44–

excited state quenched by 1,4-Bis(N,N-dimethylamino)benzene
Heuer, W.B.; Totten, M.D.; Rodman, G.S.; Hebert, E.J.; Tracy, H.J.; Nagle, J.K.
J. Am. Chem. Soc. 106: 1163-4 (1984)

Pt2[mu-diphosphito(2-)-P,P']44– quenched by 1,4-Bis(N,N-dimethylamino)benzene
Solvent : MeOH, ~25ºC

kq = 1.2 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 = 7.1 micro sec. (laser flash, luminescence)

Peterson, J.R.; Kalyanasundaram, K.
J. Phys. Chem. 89: 2486-92 (1985)

Pt2[mu-diphosphito(2-)-P,P']44– quenched by 1,4-Bis(N,N-dimethylamino)benzene at conc. 0.001 mol L–1
Solvent : MeOH

kq = 1.3 x 1010(L mol–1 s–1)

Mechanism: reductive electron transfer
Experimental methods: laser flash, luminescence, multiple shot with signal averaging
Lifetime in the absence of quencher, air free = 9.4 micro sec.

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