Electrochemical and electrochromic properties of arylene diimide dyes with N-phenylphenothiazine units
作者:Yan-Ru Huang、Sheng-Huei Hsiao
DOI:10.1016/j.dyepig.2021.110056
日期:2022.3
tBuPTZ-PTDI, were synthesized from condensation of N-(4-aminophenyl)phenothiazine and N-(4-aminophenyl)-3,7-di-tert-butylphenothiazine with pyromellitic dianhydride (PMDA), naphthalene-1,4,5,8-tetracarboxylic dianhydride (NTDA) and perylene-3,4,9,10-tetracarboxylic dianhydride (PTDA), respectively. Incorporation of tert-butyl substituents on the PTZ active sites reduces the oxidation potential and increases
五种含有N-苯基吩噻嗪或N-苯基-3,7-二叔丁基吩噻嗪单元作为N-取代基的亚芳基二酰亚胺,编码为PTZ-PMDI、PTZ-NTDI、tBuPTZ-PMDI、tBuPTZ-NTDI和tBuPTZ-PTDI,分别为从缩合合成ñ(4-氨基苯基)吩噻嗪和- ñ - (4-氨基苯基)-3,7-二-叔-butylphenothiazine与1,2,4,5-苯四酸二酐(PMDA),萘-1,4,5,8-四羧酸二酐(NTDA ) 和苝-3,4,9,10-四羧酸二酐 ( PTDA)), 分别。在 PTZ 活性位点上加入叔丁基取代基可降低氧化电位并增加 PTZ-二亚胺的氧化还原稳定性和溶解度。PTZ-PMDI和PTZ-NTDI不带叔PTZ 单元上的-丁基取代基不溶于合适的有机溶剂,因此无法对其电化学和电致变色特性进行表征。所有 tBuPTZ-二亚胺化合物都具有电化学活性,并经历了可逆氧化和准可逆还原,如循环伏