Synthesis of New Types of Ferrocene Dimers Bridged by a Fused Oligothiophene Spacer and Study of Their Electrochemical Oxidation Process via a Mixed-Valence State
Synthesis of New Types of Ferrocene Dimers Bridged by a Fused Oligothiophene Spacer and Study of Their Electrochemical Oxidation Process via a Mixed-Valence State
复制标题
稠合低聚噻吩间隔基桥接的新型二茂铁二聚体的合成及其混合价态电化学氧化过程的研究
DOI：
10.1002/hc.21156
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
S. Ogawa
中科院分区：
文献类型：
--
作者：
H. Muraoka;Y. Watanabe;A. Takahashi;H. Kamoto;S. Ogawa
我们描述了由稠合寡聚噻吩间隔基（噻吩并噻吩、苯并二噻吩和二噻吩并噻吩）桥接的二茂铁二聚体的合成和电化学氧化性质，它们被设计为用于研究通过混合价态的氧化过程的新型二茂铁二聚体。所有的二茂铁二聚体的电化学性能进行了研究，通过循环伏安技术。伏安图显示两个二茂铁片段产生的可逆双电子氧化波，第一和第二氧化波之间存在电位差（ΔE1/2=E1/2（+1/+2）-E1/2（0/+1）），范围为0至+127 mV。这一结果表明，稠合低聚噻吩间隔物的化学结构可以通过混合价态与两个二茂铁末端的双电子氧化过程相协调。
We describe the synthesis and electrochemical oxidation properties of ferrocene dimers bridged by a fused oligothiophene spacer (thienothiophene, benzodithiophene, and dithienothiophene), which are designed as new types of ferrocene dimers for the study of the oxidation process via a mixed‐valence state. The electrochemical properties of all ferrocene dimers were examined by a cyclic voltammetry technique. The voltammograms showed a reversible two‐electron oxidation wave derived from the two ferrocene fragments with a potential difference between the first and second oxidation waves (ΔE1/2=E1/2(+1/+2) –E1/2(0/+1)), which ranges from 0 to +127 mV. This result indicates that the chemical structure of the fused oligothiophene spacer can be attuned to the two‐electron oxidation process of two ferrocene terminals via a mixed‐valence state.