Several derivatives of 1,3-dithiole[3]dendralene derivatives with two thiophene spacers (2) were synthesized. The results of an X-ray structure analysis of an analog without fused TTF units and a DFT calculation of the unsubstituted-2 (2Aa) suggested that 2Aa had a structure with significantly distorted between the central 1,3-dithiole (DT) ring and one of the thiophene rings. Cyclic voltammograms
合成了具有两个噻吩间隔基 ( 2 )的 1,3-二硫醇 [3] 枝烯衍生物的几种衍生物。没有融合 TTF 单元的类似物的 X 射线结构分析结果和未取代的2 ( 2Aa )的 DFT 计算表明2Aa的结构在中心 1,3-二硫醇 (DT) 环和噻吩环之一。四(正己基硫烷基)衍生物(2Be和2Ce)的循环伏安图)由一对双电子氧化还原波和五对单电子氧化还原波组成,对应于七个氧化还原活性 DT 环的存在。四(甲硫基)或双(乙二硫基)衍生物(2Bc或2Bd)作为锂离子电池的正极材料,2Bc /Li和2Bd /Li电池的首次放电容量为133-138 mAh g - 1 .
Crown Ether Vinylogous Tetrathiafulvalene Receptors: Complexation Interference on the Molecular Movements Triggered by Electron Transfer
The synthesis of a series of crownethersubstituted vinylogous tetrathiafulvalenes (TTFVs) has been carried out through oxidative coupling of bisdithiafulvenes. These new receptors have been fully characterized using electrochemical, spectroelectrochemical, and molecular modeling experiments. These studies show that, upon oxidation, either a clip movement (TTFVs 3a,b) or a stretch movement (TTFV 3c)
The scope and limitations of the synthesis of unsymmetrically substituted TTF derivatives via the “phosphonate way” was investigated using as precursors 1,3-dithiol-2-yl-phosphonates and 1,3-dithiol-2-yliden iminium salts with various substitutents on the dithiole cycles.
Synthesis and Properties of 1,3-Dithiole[5]dendralenes with Two Thiophene Spacers
作者:Hiroaki Horiuchi、Yohji Misaki
DOI:10.1246/cl.2010.989
日期:2010.9.5
Novel 1,3-dithiole[5]dendralene derivatives with two thiophene spacers 3a and 3b were synthesized. Cyclic voltammetry and spectroelectrochemistry revealed that the positive charges of 3 in the dication and tetracation states mainly distribute on the outer two extended TTF moieties.