Electrochemical Study of 3-(<i>N</i>-alkylamino)thiophenes: Experimental and Theoretical Insights into a Unique Mechanism of Oxidative Polymerization
作者:Christopher L. Heth、Dennis E. Tallman、Seth C. Rasmussen
DOI:10.1021/jp912287s
日期:2010.4.29
hybrids of thiophene and aniline, is studied utilizing experimental and theoretical methods. Synthesis of new short chain 3-(N-alkylamino)thiophenes is discussed, and a mechanism of electropolymerization is proposed whereby oxidation occurs through removal of a nitrogen lone pair electron, followed by a chemical step resulting in radical contribution at the 2-position of the thiophene ring. Coupling of
可以通过电聚合产生许多共轭聚合物体系,包括聚噻吩和聚苯胺。虽然已经报道两者都通过自由基偶联在阳极上聚合,但是苯胺氮的存在在电聚合机理中起着重要作用。在这项研究中,利用实验和理论方法研究了3-(N-烷基氨基)噻吩的电聚合机理,这是噻吩和苯胺的结构杂化物。合成新型短链3-(N讨论了-烷基氨基)噻吩,并提出了电聚合机理,其中通过除去氮孤对电子而发生氧化,然后进行化学步骤,导致在噻吩环的2位上产生自由基。这些最终自由基阳离子的偶联因此产生典型的聚(α-α'-噻吩)骨架。