Magnetic Field Effect on the Radical Yield of Electron Transfer Reactions Between a Dye Triplet and Heavy Atom Substituted Electron Donors
نویسنده
چکیده
The radical yield in the electron t ransfer reactions between thionine tr iplet and various halogenanilines, as measured by kinetic flash spectroscopy in the microsecond time region, decreases by application of magnetic fields up to 4 kGauss . The relative magnetic field effect parallels the influence of the heavy atom substi tuents on the intersystem crossing ra te constant in the triplet exciplex supposed to be the pr imary product of the electron t ransfer reaction. The magnetic field effect is suggested to be due to differences of the g-factors in the geminate radical pair , originating by dissociation of the triplet exciplex.
منابع مشابه
Magnetic Field Effect on the Radical Yield of Electron T~ansfer Reactions Between a Dye Triplet and Heavy Atom Substituted Electron Donors
The radical yield in the electron transfer reactions ?etween ~hionine trip.let and. various halo· genanilines as measured by kinetic flash spectroscopy m the mIcrosecond tIme regIon, decreases by applica;ion of magnetic fields up to 4 kGauss: The relative m~gnetic field effect. parallels. the influence of the heavy atom substituents on the mtersystem crossmg rate. constant m the. trIplet excipl...
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