title: Stable radical anions inside fullerene cages: formation of reversible electron transfer systems.
abstract: The complexation behavior of La(2)@C(80) dimetallofullerenes with organic donor molecules (D) in solution has been investigated. It has been shown that La(2)@C(80) and D form 1:1 complexes as a result of electron transfer interactions in the ground state. The equilibrium between La(2)@C(80)/D and [La(2)@C(80)](•-)/[D](+) in solution is readily controlled by changing the temperature and solvent.
authors.affiliation: Center for Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Tsuchiya
authors.forename: Mateusz
authors.initials: M
authors.lastname: Wielopolski
authors.forename: Noriko
authors.initials: N
authors.lastname: Sakuma
authors.forename: Naomi
authors.initials: N
authors.lastname: Mizorogi
authors.forename: Takeshi
authors.initials: T
authors.lastname: Akasaka
authors.forename: Tatsuhisa
authors.initials: T
authors.lastname: Kato
authors.forename: Dirk M
authors.initials: DM
authors.lastname: Guldi
authors.forename: Shigeru
authors.initials: S
authors.lastname: Nagase