Zn(etioporphyrin I) [triplet] excited state quenched by Naphthacene

Zn(etioporphyrin I) [triplet] quenched by Naphthacene
Solvent : Benzene, 0.01 mol/L 4-nitrotoluene

k_q = 5.1 x 10⁸(L mol^–1 s^–1)

Mechanism: energy transfer
Experimental methods: conventional flash, absorption, single shot signal
Comments: S* is an exciplex with nitrotoluene