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Oxygen quenching, formation

Chemical quenching by formation of a complex A 02 may also be involved in oxygen quenching. [Pg.73]

Quenching of anthracene fluorescence by iodide ions involves electron transfer. One study of this process in ethanol/propanol solutions has employed a Marcus type theory whilst another using methanol/ethanol media selects the Onuchic equation to take account of both electron transfer and diffusion effects. Oxygen quenching "" of the fluorescence of anthracene derivatives under hydrostatic pressures up to 700 MPa gives an insight into the role of complex formation in the... [Pg.13]

Irradiation of phenyl substituted diacetylenes yields both protonated products and reduction products. The photoreduction products seem to originate from the triplet excited state, since oxygen quenches the photoreduction almost completely. However, oxygen does not quench the polar addition reaction, supporting a singlet excited state mechanism for the formation of type B photoproducts (Cl protonation product). [Pg.131]

See other pages where Oxygen quenching, formation is mentioned: [Pg.395]    [Pg.74]    [Pg.360]    [Pg.248]    [Pg.237]    [Pg.363]    [Pg.25]    [Pg.12]    [Pg.39]    [Pg.39]    [Pg.190]    [Pg.59]    [Pg.357]    [Pg.295]    [Pg.108]    [Pg.110]    [Pg.8]    [Pg.318]    [Pg.195]    [Pg.239]    [Pg.211]    [Pg.66]    [Pg.116]    [Pg.150]    [Pg.3573]    [Pg.3725]    [Pg.367]    [Pg.373]    [Pg.65]    [Pg.417]    [Pg.429]    [Pg.77]    [Pg.209]    [Pg.932]    [Pg.238]    [Pg.205]    [Pg.175]    [Pg.80]    [Pg.363]    [Pg.256]    [Pg.121]    [Pg.16]    [Pg.37]    [Pg.115]    [Pg.167]   


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