Addition of adamantylidene to La-2@C-78: Isolation and single-crystal X-ray structural determination of the monoadducts

作者：Cao Baopeng; Nikawa Hidefumi; Nakahodo Tsukasa; Tsuchiya Takahiro; Maeda Yutaka; Akasaka Takeshi^*; Sawa Hiroshi; Slanina Zdenek; Mizorogi Naomi; Nagase Shigeru

来源：Journal of the American Chemical Society, 2008, 130(3): 983-989.

DOI：10.1021/ja076462v

Thermal and photochemical reactions of La-2@C-78 with 2-admantane-2,3-[3H]-diazirine are investigated. Four isomers of the monoadcluct (La-2@C(78)Ad) 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 C-13 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 C-3 axis of the D-3h cage of La-2@C-78.

• 出版日期2008-1-23