Polyfluoroalkylsulfanyl-substituted tetrathiafulvalene derivatives: synthesis, electrochemical properties, and derived cation radical salts
作者:Tomasz Nozdryn、Jean-François Favard、Jack Cousseau、Michel Jubault、Alain Gorgues、Jesús Orduna、Javier Garín
DOI:10.1016/s0022-1139(97)00099-7
日期:1997.12
in fair to very good yields by using tri-isopropylphosphite, instead of the more usual triethyl or trimethylphosphite. All of these new TTF-derivatives exhibit quasi reversible voltammograms. Cation radical salts have been obtained mainly from one of these derivatives, whose anodic oxidation, in the presence of tetrabutylammonium hexafluorophosphate or perchlorate, allows isolation of very thin ‘hair-like’
多氟烷基硫烷基取代的四硫富瓦烯衍生物是通过合适的2-(thi)oxo-1,3-dithioles的自偶联或交叉偶联而合成的。关键中间体是由2-(F-烷基)-1-碘乙烷C n F 2 n +1 -C 2 H之间的反应形成的4,5-双(聚氟烷基-硫烷基)-2-巯基-1,3-二硫醇4 I(ñ = 6,8)和双(四乙铵)双(1,3-二硫代-2-硫酮-4,5-二硫代拉托)锌酸酯和4- [2'-(F-己基-乙基硫基] -5-甲基硫基-2 -thioxo-1,3-dithiole。通过使用亚磷酸三异丙酯而不是更常用的亚磷酸三乙酯或三甲基酯,可以形成相当高收率的自偶联和交叉偶联产物,所有这些新的TTF衍生物均具有准可逆的伏安图阳离子自由基盐主要是从这些衍生物之一中获得的,在六氟磷酸四丁基铵或高氯酸盐的存在下,它们的阳极氧化可分离出非常细的“头发状”线。