title: Stabilizing ion and radical ion pair states in a paramagnetic endohedral metallofullerene/π-extended tetrathiafulvalene conjugate.
abstract: Electron donor-acceptor conjugates of paramagnetic endohedral metallofullerenes and π-extended tetrathiafulvalene (exTTF) were synthesized, characterized, and probed with respect to intramolecular electron transfer involving paramagnetic fullerenes. UV-vis-NIR absorption spectroscopy complemented by electrochemical measurements attested to weak electronic interactions between the electron donor, exTTF, and the electron acceptor, La@C(82), 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(82) and of one-electron-oxidized exTTF.
authors.affiliation: Life Science Center of Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan.
authors.forename: Yuta
authors.initials: Y
authors.lastname: Takano
authors.forename: Shota
authors.initials: S
authors.lastname: Obuchi
authors.forename: Naomi
authors.initials: N
authors.lastname: Mizorogi
authors.forename: Raúl
authors.initials: R
authors.lastname: García
authors.forename: M Ángeles
authors.initials: MÁ
authors.lastname: Herranz
authors.forename: Marc
authors.initials: M
authors.lastname: Rudolf
authors.forename: Silke
authors.initials: S
authors.lastname: Wolfrum
authors.forename: Dirk M
authors.initials: DM
authors.lastname: Guldi
authors.forename: Nazario
authors.initials: N
authors.lastname: Martín
authors.forename: Shigeru
authors.initials: S
authors.lastname: Nagase
authors.forename: Takeshi
authors.initials: T
authors.lastname: Akasaka