基于噻吩并[3,2 - ]噻吩的用于电致变色应用的铁（II）金属超分子聚合物。 - Suppr

Iron (II) Metallo-Supramolecular Polymers Based on Thieno[3,2-]thiophene for Electrochromic Applications.

作者信息

Chernyshev Andrei, Acharya Udit, Pfleger Jiří, Trhlíková Olga, Zedník Jiří, Vohlídal Jiří

机构信息

Faculty of Science, Department of Physical and Macromolecular Chemistry, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic.

Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic.

出版信息

Polymers (Basel). 2021 Jan 23;13(3):362. doi: 10.3390/polym13030362.

Four new bis() unimers with different linkers between the thieno[3,2-]thiophene-2,5-diyl central unit and terpyridine-4'-yl () end-groups: no linker (), ethynediyl (), 1,4-phenylene () and 2,2'-bithophene-5,5'-diyl () are prepared, characterized, and assembled with Fe ions to metallo-supramolecular polymers (Fe-MSPs). The Fe-MSP films prepared by spin-casting on Indium Tin Oxide (ITO) glass are characterized by atomic force microscope (AFM) microscopy, cyclic voltammetry, and UV/vis spectroscopy and studied for their electrochromism and effect of the unimer structure on their electrochromic performance. Of the studied MSPs, shows the highest optical contrast as well as coloration efficiency (CE = 641 cm C) and the fastest optical response. This makes it an excellent candidate for possible use in electrochromic devices.

制备了四种新型双（）单体，它们在噻吩并[3,2 - ]噻吩 - 2,5 - 二基中心单元和三联吡啶 - 4'- 基（）端基之间具有不同的连接基团：无连接基团（）、乙炔二基（）、1,4 - 亚苯基（）和2,2'- 联噻吩 - 5,5'- 二基（），对其进行了表征，并与铁离子组装成金属超分子聚合物（Fe - MSPs）。通过旋涂在氧化铟锡（ITO）玻璃上制备的Fe - MSP薄膜，用原子力显微镜（AFM）显微镜、循环伏安法和紫外/可见光谱进行了表征，并研究了它们的电致变色性能以及单体结构对其电致变色性能的影响。在所研究的MSPs中，显示出最高的光学对比度以及着色效率（CE = 641 cm C）和最快的光学响应。这使其成为可能用于电致变色器件的极佳候选材料。