Mg[tetrakis(4-tert-butyl)phthalocyanine] excited state quenched by 1,4-Naphthoquinone

Mg[tetrakis(4-tert-butyl)phthalocyanine] quenched by 1,4-Naphthoquinone
Solvent : Toluene

k_q = 6 x 10⁶ (calc)(L mol^–1 s^–1)

Mechanism: exciplex formation
Experimental methods: conventional flash, absorption, single shot signal
Lifetime in the absence of quencher, air free = 560 micro sec.
Comments: biexponential decay, see Mech. [2]