title: Rock-salt-type crystal of thermally contracted C60 with encapsulated lithium cation.
abstract: Rock solid: fullerene-encapsulated Li(+) (Li(+)@C(60)) is an alkaline cation owing to the spherical shape and positive charge. Li(+)@C(60) crystallizes as a rock-salt-type crystal in the presence of PF(6)(-). The orientations of C(60) and PF(6)(-) (orange) are perfectly ordered below 370 K, and Li(+) (purple) hops within the cage. At temperatures below 100 K two Li(+) units are localized at two polar positions within each C(60) .
authors.affiliation: Department of Information and Biological Science, Nagoya City University, Japan. aoyagi@nsc.nagoya-cu.ac.jp
authors.forename: Shinobu
authors.initials: S
authors.lastname: Aoyagi
authors.forename: Yuki
authors.initials: Y
authors.lastname: Sado
authors.forename: Eiji
authors.initials: E
authors.lastname: Nishibori
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Sawa
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Okada
authors.forename: Hiromi
authors.initials: H
authors.lastname: Tobita
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Kasama
authors.forename: Ryo
authors.initials: R
authors.lastname: Kitaura
authors.forename: Hisanori
authors.initials: H
authors.lastname: Shinohara