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.
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DOI：
10.1021/ja8072066
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发表时间：
2008-11
影响因子：
15
通讯作者：
Takuya Fujimoto;M. Matsushita;Hirofumi Yoshikawa;K. Awaga
中科院分区：
文献类型：
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作者：
Takuya Fujimoto;M. Matsushita;Hirofumi Yoshikawa;K. Awaga
我们研究了八硫并[8]环烯(1)在离子液体N，N-二乙基-N-甲基(2-甲氧乙基)双(三氟甲基磺酰亚胺)铵(DEME-TFSI)中的电化学行为。化合物1在氧化扫描中表现出同时的两电子氧化，然后逐步还原到原来的中性状态，表现出明显的电致变色。根据电化学氧化后HOMO中的空位允许的n-pi转变，很好地解释了这种颜色变化。
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-pi transition that is allowed by the vacancy in the HOMO of 1 after electrochemical oxidation.