Zn(phthalocyanine)

excited state quenched by MV2+
Ohno, T.; Kato, S.; Lichtin, N.N.
Bull. Chem. Soc. Jpn. 55: 2753-9 (1982)

Zn(phthalocyanine) quenched by MV2+
Solvent : DMA/H2O (2.3/1), ionic strength 1-1.5 (MgCl2 or NaClO4)

kq = 3.6 x 106(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 = 1.0

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

Zn(phthalocyanine) quenched by MV2+
Solvent : DMA/H2O (2.3/1), 0.01 mol/L HClO4, ionic strength 1-1.5 (MgCl2 or NaClO4)

kq = 5 x 105(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 = 0.43

Ohtani, H.; Kobayashi, T.; Ohno, T.; Kato, S.; Tanno, T.; Yamada, A.
J. Phys. Chem. 88: 4431-5 (1984)

Zn(phthalocyanine) quenched by MV2+
Solvent : DMF/H2O (9/1)

kq = 5.5 x 107(L mol–1 s–1)

Mechanism: oxidative electron transfer
Experimental methods: laser flash, absorption, multiple shot with signal averaging
Lifetime in the absence of quencher, air free = 180 micro sec.
Electron transfer fraction of quenching = 0.62

back...