title: Addition of adamantylidene to La2@C78: isolation and single-crystal X-ray structural determination of the monoadducts.
abstract: Thermal and photochemical reactions of La2@C78 with 2-admantane-2,3-[3H]-diazirine are investigated. Four isomers of the monoadduct (La2@C78Ad) synthesized by the photoreaction are isolated by HPLC and characterized by mass, UV-vis-NIR absorption, cyclic voltammogram and differential pulse voltammogram spectroscopy, proton and 13C NMR spectroscopic analysis, single-crystal X-ray diffraction analysis, and theoretical approaches. The addition reactions occur at both the [5,6] and [6,6] positions. X-ray and theoretical studies indicate that one of the monoadduct isomers has an open structure with two La atoms on the C3 axis of the D3h cage of La2@C78.
authors.affiliation: Center for Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba 305-8577, Japan.
authors.forename: Baopeng
authors.initials: B
authors.lastname: Cao
authors.forename: Hidefumi
authors.initials: H
authors.lastname: Nikawa
authors.forename: Tsukasa
authors.initials: T
authors.lastname: Nakahodo
authors.forename: Takahiro
authors.initials: T
authors.lastname: Tsuchiya
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Maeda
authors.forename: Takeshi
authors.initials: T
authors.lastname: Akasaka
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Sawa
authors.forename: Zdenek
authors.initials: Z
authors.lastname: Slanina
authors.forename: Naomi
authors.initials: N
authors.lastname: Mizorogi
authors.forename: Shigeru
authors.initials: S
authors.lastname: Nagase