are described. The dithiols were prepared from cyclic polysulfides and their structures were characterized by single-crystal X-ray diffraction analyses. Both cyclic dithioacetals and acyclic S,S′-dimethyl derivatives were prepared by facile reactions of the corresponding dithiols. The acyclic sulfur-substituted dienes exhibited electrochromic behavior in which the solution turned from colorless to dark
摘要 2,3-二巯基-1,1,4,4-四芳基-
1,3-丁二烯作为含
硫 1,1,4,4-四芳基-1,3 的通用中间体的合成和反应描述了-
丁二烯衍
生物。二
硫醇由环状多
硫化物制备,并通过单晶X射线衍射分析表征了其结构。环状二
硫缩醛和无环S,S'-二甲基衍
生物都是通过相应二
硫醇的简单反应制备的。无环
硫取代的二烯表现出电致变色行为,其中溶液在高于 0.3 V vs Fc/Fc+ 电势的外部电场下从无色变成深紫色。