Zn(phthalocyanine)

excited state quenched by 1,4-Benzoquinone
Ohno, T.; Kato, S.; Lichtin, N.N.
Bull. Chem. Soc. Jpn. 55: 2753-9 (1982)

Zn(phthalocyanine) quenched by 1,4-Benzoquinone
Solvent : DMA/H2O (2.3/1), ionic strength 1-1.5 (MgCl2 or NaClO4)

kq = 5.0 x 108(L mol–1 s–1)

Mechanism: oxidative electron transfer
Experimental methods: laser flash, absorption, single shot signal
Lifetime in the absence of quencher, air free = 200 micro sec.
Electron transfer fraction of quenching = 0.78

Ohno, T.; Kato, S.; Lichtin, N.N.
Bull. Chem. Soc. Jpn. 55: 2753-9 (1982)

Zn(phthalocyanine) quenched by 1,4-Benzoquinone
Solvent : DMA/H2O (2.3/1), 0.01 mol/L HClO4, ionic strength 1-1.5 (MgCl2 or NaClO4)

kq = 5.0 x 108(L mol–1 s–1)

Mechanism: oxidative electron transfer
Experimental methods: laser flash, absorption, single shot signal
Lifetime in the absence of quencher, air free = 200 micro sec.
Electron transfer fraction of quenching = 0.90

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