Zn(phthalocyanine) excited state quenched by Co(phen)33+

Zn(phthalocyanine) quenched by Co(phen)₃³⁺ at conc. < 2 x 10^–4 mol L^–1
Solvent : DMA/H₂O (2.3/1), ~15ºC

k_q = 3.4 x 10⁸(L mol^–1 s^–1)

Mechanism: oxidative electron transfer
Experimental methods: laser flash, absorption, multiple shot with signal averaging
Electron transfer fraction of quenching = 0.56