Addition of adamantylidene to La2@C78: isolation and single-crystal X-ray structural determination of the monoadducts.
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.
Cao
Baopeng
B
Center for Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba 305-8577, Japan.
Nikawa
Hidefumi
H
Nakahodo
Tsukasa
T
Tsuchiya
Takahiro
T
Maeda
Yutaka
Y
Akasaka
Takeshi
T
Sawa
Hiroshi
H
Slanina
Zdenek
Z
Mizorogi
Naomi
N
Nagase
Shigeru
S