Novel Bis-Fused π-Electron Donors for Organic Metals: 2-(1,3-Dithiol-2-ylidene)-5-(thiopyran-4-ylidene)-1,3,4,6-tetrathiapentalene
作者:Yohji Misaki、Hideki Fujiwara、Tokio Yamabe
DOI:10.1021/jo9516244
日期:1996.1.1
Bis-fused pi-electron donors composed of tetrathiafulvalene (TTF) and 2-(thiopyran-4-ylidene)-1,3-dithiole (TPDT), 2-(1,3-dithiol-2-ylidene)-5-(thiopyran-4-ylidene)-1,3,4,6-tetrathiapentalene (1a, TPDT-TTP), and its derivatives (1b-d, 2a-d) have been synthesized as donor components for organic conductors. An X-ray structure analysis of bis(methylthio)-1 (1c) revealed that the TPDT-TTP skeleton is almost
由四硫富瓦烯(TTF)和2-(硫吡喃-4-亚烷基)-1,3-二硫醇(TPDT),2-(1,3-二硫醇-2-亚烷基)-5-()组成的双熔合π电子供体已经合成了噻喃-4-亚烷基)-1,3,4,6-四硫杂戊烯(1a,TPDT-TTP)及其衍生物(1b-d,2a-d)作为有机导体的给体组分。对双(甲硫基)-1(1c)的X射线结构分析表明,TPDT-TTP骨架除外部的1,3-二硫醇环外几乎为平面,并且晶体具有二维的“θ型”分子排列。TPDT-TTP的循环伏安图显示四对单电子氧化还原波。1a的第一氧化电位(E(1))(在PhCN中为+0.37 V vs SCE)与TTF(+0.35 V)相当,并且比TPDT(+0.27 V)高0.1V。观察到的对E(1)值的取代基效应表明,第一个单电子氧化主要发生在2-(thiopyran-4-yylne)-1,3-dithiole(TPDT)部分。另一方面,根据E(