Fullerene C60 derivatives covalently linked to a nitroxide radical are studied by Time Resolved EPR. The interaction between radical and triplet or singlet excitation,lo calized on the fullerene moiety,gives rise to spin polarization of the radical EPR signal. The quartet state of the Radical Triplet Pair (RTP) is also observed by EPR. Electron transfer involving the excited fullerene triplet is studied through the effects on the spin polarization pattern.
Paramagnetic C60 derivatives with one and more unpaired electrons: Spin polarization and photoelectron transfer
CORVAJA, CARLO;TOFFOLETTI, ANTONIO;CONTI, FOSCA
1999
Abstract
Fullerene C60 derivatives covalently linked to a nitroxide radical are studied by Time Resolved EPR. The interaction between radical and triplet or singlet excitation,lo calized on the fullerene moiety,gives rise to spin polarization of the radical EPR signal. The quartet state of the Radical Triplet Pair (RTP) is also observed by EPR. Electron transfer involving the excited fullerene triplet is studied through the effects on the spin polarization pattern.
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