'Quenching of Excited States of Metal Complexes

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

excited state quenched by 1,4-Benzoquinone

Harriman, A.; Porter, G.; Wilowska, A.
J. Chem. Soc., Faraday Trans. 2 79: 807-16 (1983)

Pd(5,10,15,20-tetraphenylporphyrin) quenched by 1,4-Benzoquinone
Solvent : EtOH

k_q = 2.6 x 10⁹(L mol^–1 s^–1)

Mechanism: oxidative electron transfer
Experimental methods: laser flash, absorption, , luminescence
Electron transfer fraction of quenching = 0.05