Electrochemistry of tert-Butylcalix[8]arene-C60 Films Using a Scanning Electrochemical Microscope-Quartz Crystal Microbalance

David E. Cliffel, Allen J. Bard, Seiji Shinkai

研究成果: ジャーナルへの寄稿学術誌査読

39 被引用数 (Scopus)

抄録

The electrochemical reduction of tert-butylcalix[8]arene-C60 particle films was studied using the scanning electrochemical microscope combined with a quartz crystal microbalance (QCM) for several electrolytes in MeCN. Complexation of the fullerene within the film results in a negative shift of the peak potential of the first cathodic wave by about 400 mV compared to the reduction of a pure C60 film. The QCM indicates a mass loss during reduction of the film. Even in electrolytes where C60 anions normally remain in the surface film, a loss of fullerene electrochemical activity occurs. The complex breaks apart upon reduction of the fullerene center, with the fullerene escaping from the calixarene basket into the MeCN solution, leaving the calixarene as an insoluble film on the electrode surface. These results show that the π electron sharing of the complex is decreased by the additional electron density added to the fullerene by reduction to C60-.

本文言語英語
ページ(範囲)4146-4151
ページ数6
ジャーナルAnalytical Chemistry
70
19
DOI
出版ステータス出版済み - 10月 1 1998

!!!All Science Journal Classification (ASJC) codes

  • 分析化学

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