A Singly Bonded Derivative of Endohedral Metallofullerene: La@C82CBr(COOC2H5)2
Journal of the American Chemical Society2005Vol. 127(49), pp. 17136–17137
Citations Over TimeTop 12% of 2005 papers
Lai Feng, Tsukasa Nakahodo, Takatsugu Wakahara, Takahiro Tsuchiya, Yutaka Maeda, Takeshi Akasaka, Tatsuhisa Kato, Ernst Horn, Kenji Yoza, Naomi Mizorogi, Shigeru Nagase
Abstract
A novel Bingel monoadduct of La@C82 (mono-A) has been synthesized by the reaction with diethyl bromomalonate in the presence of DBU (Bingel-Hirsch reaction). Its structure has been fully determined by NMR spectroscopic and X-ray crystallographic analyses. The most distinct feature of mono-A is the single bond moiety between the functional group and fullerene cage, which is very different from the cyclopropane moiety in a conventional Bingel adduct of empty fullerenes. Further spectroscopic characterizations and calculations revealed the closed-shell structure of mono-A. Its formation mechanism was discussed according to calculation results.
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