Electrosynthesis of a tetrathiafulvalene-derivatized polythiophene
Electrosynthesis of a tetrathiafulvalene-derivatized polythiophene
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四硫富瓦烯衍生的聚噻吩的电合成
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
J. Roncali
中科院分区：
文献类型：
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作者：
C. Thobie‐Gautier;A. Gorgues;M. Jubault;J. Roncali
合成了一种新的含有四硫富瓦烯(TTF)部分的噻吩衍生物，它通过一个直线型氧十八烷基间隔物共价连接到噻吩环上。尽管在乙腈中，该化合物的伏安曲线显示出TTF和3-碱性噻吩类化合物的循环伏安特征，但所有的电聚合尝试都没有成功，这可能是因为TTF清除了噻吩阳离子自由基。相反，通过在硝基苯溶液中应用重复电位扫描可以实现电聚合。这一结果表明，与紫外可见吸收光谱一致，硝基苯与TTF部分之间形成的给体-受体络合物降低了其对噻吩阳离子自由基的反应活性。
A new thiophene derivative containing a tetrathiafulvalene (TTF) moiety covalently attached to the thiophene ring via a linear oxadecyl spacer has been synthesized. Although in acetonitrile the voltammogram of this compound exhibits the cyclic voltammetric features of TTF and 3-alkalthiophenes, all attempts of electropolymerization remained unsuccessful, presumably because of the scavenging of the thiophene cation radicals by TTF. In contrast, electropolymerization can be achieved by application of repetitive potential scans in nitrobenzene solutions. This result suggests, in agreement with UV-visible absorption spectra, that the formation of a donor-acceptor complex between nitrobenzene and the TTF moiety decreases its reactivity toward thiophene cation radicals