Dithieno[3, 2‐b:2^′,3^′‐d]arsole is a molecule with a high oxidation potential (>1.2 V vs. Ag/AgCl) whose polymerization has not been achieved in common organic electrolytic solutions. Herein, we report the electropolymerization of dithieno[3, 2‐b:2^′,3^′‐d]arsole, which was performed in a dichloromethane solution using the trifluoroborate diethyl ether complex (BF₃−OEt₂) as an electrolyte. Under these conditions, the oxidation potential of dithieno[3, 2‐b:2^′,3^′‐d]arsole decreased to 0.5 V. The potential‐sweep electropolymerization of this molecule afforded an insoluble polymerized film on indium tin oxide or Pt working electrodes. The polymer film was subjected to X‐ray photoelectron spectroscopy analysis and the corresponding spectra revealed the presence of H, C, S, and As, which are the constituent elements of the monomer. Moreover, the polymer resulted to be a low band gap material according to the low energy band observed in its absorption spectra.

中文翻译：

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Dithieno [3,2-b：2'，3'-d] arsole的电聚合

二噻吩并[3，2- b：2 ^' ，3 ^' - d ]砷唑是一种具有高氧化电势（> 1.2伏，相对于Ag / AgCl电极），其聚合还没有在普通的有机电解液而完成的分子。在本文中，我们报道二噻吩并的电聚合[3，2- b：2 ^' ，3 ^' - d ]砷唑，将其用三氟二乙醚络合物（BF在二氯甲烷溶液中进行₃ -OEt ₂）作为电解质。在这些条件下，二噻吩并[3，2-的氧化电势b：2 ^'，3 ^' - d] arsole降至0.5V。该分子的电势扫描电聚合在铟锡氧化物或Pt工作电极上提供了不溶的聚合膜。对该聚合物薄膜进行X射线光电子能谱分析，相应的光谱揭示出H，C，S和As的存在，它们是单体的组成元素。此外，根据在其吸收光谱中观察到的低能带，该聚合物成为低带隙材料。