Mg[tetrakis(4-tert-butyl)phthalocyanine] excited state quenched by OrgQue14

Mg[tetrakis(4-tert-butyl)phthalocyanine] quenched by OrgQue14 at conc. 0.002-0.02 mol L^–1
Solvent : Toluene

k_q = 1.3 x 10⁶(L mol^–1 s^–1)

Mechanism: oxidative electron transfer
Experimental methods: conventional flash, absorption, single shot signal
Lifetime in the absence of quencher, air free = 380 micro sec.
Comments: nonlinear Stern-Volmer plot, see Mech. [1]