Electrochemical and Electrochromic Properties of Octathio[8]circulene Thin Films in Ionic Liquids

Electrochemical and Electrochromic Properties of Octathio[8]circulene Thin Films in Ionic Liquids

We studied the electrochemistry of the thin films of octathio[8]circulene (1) in an ionic liquid, N,N-diethyl-N-methyl(2-methoxyethyl) ammonium bis(trifluoromethylsulfonyl)imide (DEME-TFSI). The compound 1 exhibited simultaneous two-electron oxidation in the oxidation scan and then stepwise reductio...

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Veröffentlicht in:Journal of the American Chemical Society 2008-11, Vol.130 (47), p.15790-15791
Hauptverfasser: Fujimoto, Takuya, Matsushita, Michio M, Yoshikawa, Hirofumi, Awaga, Kunio
Format: Artikel
Sprache:eng
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Zusammenfassung:We studied the electrochemistry of the thin films of octathio[8]circulene (1) in an ionic liquid, N,N-diethyl-N-methyl(2-methoxyethyl) ammonium bis(trifluoromethylsulfonyl)imide (DEME-TFSI). The compound 1 exhibited simultaneous two-electron oxidation in the oxidation scan and then stepwise reductions to the original neutral state, showing significant electrochromism. This color change was well-interpreted in terms of the n−π transition that is allowed by the vacancy in the HOMO of 1 after electrochemical oxidation.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja8072066