1 research outputs found
Stabilizing Ion and Radical Ion Pair States in a Paramagnetic Endohedral Metallofullerene/ÏâExtended Tetrathiafulvalene Conjugate
Electron donorâacceptor conjugates of paramagnetic
endohedral
metallofullerenes and Ï-extended tetrathiafulvalene (exTTF)
were synthesized, characterized, and probed with respect to intramolecular
electron transfer involving paramagnetic fullerenes. UVâvisâNIR
absorption spectroscopy complemented by electrochemical measurements
attested to weak electronic interactions between the electron donor,
exTTF, and the electron acceptor, La@C<sub>82</sub>, in the ground
state. In the excited state, photoexcitation powers a fast intramolecular
electron transfer to yield an ion and radical ion pair state consisting
of one-electron-reduced La@C<sub>82</sub> and of one-electron-oxidized
exTTF