'Quenching of Excited States of Metal Complexes

Zn(mesoporphyrin IX dimethyl ester) [triplet]

excited state quenched by O₂

Dzhagarov, B.M.; Salokhiddinov, K.I.
Opt. Spectrosc. (USSR) 51: 466-70 (1981)

Zn(mesoporphyrin IX dimethyl ester) [triplet] quenched by O₂ at conc. 0.0011 mol L^–1
Solvent : Toluene

k_q = 3.4 x 10⁹(L mol^–1 s^–1)

Mechanism: energy transfer
Experimental methods: laser flash, absorption, single shot signal