Regioselective cycloaddition of La2@I(h)-C80 with tetracyanoethylene oxide: formation of an endohedral dimetallofullerene adduct featuring enhanced electron-accepting character |
| |
Authors: | Yamada Michio Minowa Mari Sato Satoru Slanina Zdenek Tsuchiya Takahiro Maeda Yutaka Nagase Shigeru Akasaka Takeshi |
| |
Institution: | Department of Chemistry, Tokyo Gakugei University, Koganei, Tokyo 184-8501, Japan. |
| |
Abstract: | We describe the regioselective cycloaddition of La(2)@I(h)-C(80) with tetracyanoethylene oxide (TCNEO), which enabled the formation of the corresponding adduct having a tetracyanotetrahydrofuran moiety. X-ray crystallographic analysis revealed that the cycloaddition took place as a 5,6] addition. Along with dynamic swing motion of the metal atoms, the results of this electrochemical study demonstrate that TCNEO addition enhanced the electron-accepting character of La(2)@I(h)-C(80) and that the first reduction potential of the adduct reached -0.21 V versus the ferrocene/ferrocenium couple, which is the lowest value reported for endohedral metallofullerenes and their derivatives to date. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|