The synthesis and electrochemical study of new electrochromic viologen-based materials
作者:John A. Barltrop、Andrew C. Jackson
DOI:10.1039/p29840000367
日期:——
using electrochemical and spectroscopic techniques. It was determined that the stability of the radical film deposited on cathodic reduction of aqueous solutions of these salts may be strongly influenced by symmetry, steric, and electronic factors. From this basis, it was possible to design a viologen, 1,1′-bis-(2-methylbenzyl)-2-methyl-4,4′-bipyridinium dibromide (9), having electrochromic properties
制备了一系列4,4'-联吡啶和3,8-菲咯啉的二季盐,随后使用电化学和光谱技术进行了筛选。已经确定,通过阴极还原这些盐的水溶液而沉积的自由基膜的稳定性可能受到对称性,空间和电子因素的强烈影响。在此基础上,有可能设计出一种用于电子显示的电致变色性能优于其的变色剂,即1,1'-双-(2-甲基苄基)-2-甲基-4,4'-联吡啶二溴化物(9)。已经存在。发现由混合成分组成的自由基薄膜比由单独的两性盐生成的薄膜更不易受到老化的影响。