'Quenching of Excited States of Metal Complexes

Zn[5-phenyl-10,15,20-tris(4-sulfonatophenyl)porphyrin]^3–

excited state quenched by 2-Mercaptoethanol

Aono, S.; Okura, I.; Yamada, A.
J. Phys. Chem. 89: 1593-8 (1985)

Zn[5-phenyl-10,15,20-tris(4-sulfonatophenyl)porphyrin]^3– quenched by 2-Mercaptoethanol
Solvent : H₂O

k_q = ~5 x 10⁴(L mol^–1 s^–1)

Mechanism: reductive electron transfer?
Experimental methods: laser flash, absorption, single shot signal
Lifetime in the absence of quencher, air free = 1600 micro sec.

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Zn[5-phenyl-10,15,20-tris(4-sulfonatophenyl)porphyrin]3–

Zn[5-phenyl-10,15,20-tris(4-sulfonatophenyl)porphyrin]^3–