Zn(mesoporphyrin IX dimethyl ester) [singlet]

excited state quenched by cis-4,4'-Dinitrostilbene
Lopp, I.G.; Hendren, R.W.; Wildes, P.D.; Whitten, D.G.
J. Am. Chem. Soc. 92: 6440-7 (1970)

Zn(mesoporphyrin IX dimethyl ester) [singlet] quenched by cis-4,4'-Dinitrostilbene
Solvent : Benzene

kq = 8.1 x 109(L mol–1 s–1)

Mechanism: exciplex formation
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.0043 micro sec. (67E121)
Comments: nonlinear Stern-Volmer plot at high [Q]

Lopp, I.G.; Hendren, R.W.; Wildes, P.D.; Whitten, D.G.
J. Am. Chem. Soc. 92: 6440-7 (1970)

Zn(mesoporphyrin IX dimethyl ester) [singlet] quenched by cis-4,4'-Dinitrostilbene
Solvent : EtOH

kq = 1.3 x 1010(L mol–1 s–1)

Mechanism: exciplex formation
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.0043 micro sec. (67E121)
Comments: nonlinear Stern-Volmer plot at high [Q]

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