Pd(5,10,15,20-tetraphenylporphyrin)

excited state quenched by cis-Stilbene
Mercer-Smith, J.A.; Whitten, D.G.
J. Am. Chem. Soc. 100: 2620-5 (1978)

Pd(5,10,15,20-tetraphenylporphyrin) quenched by cis-Stilbene
Solvent : Benzene

kq = 1.8 x 105(L mol–1 s–1)

Mechanism: exciplex formation
Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 358 micro sec. (conventional flash, luminescence, single shot signal)

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