Syntheses of new electron donors with hydroxymethyl groups and studies on their cation-radical salts
作者:Hongxiang Li、Deqing Zhang、Bin Zhang、Youxin Yao、Wei Xu、Daoben Zhu、Zhemin Wang
DOI:10.1039/b003041o
日期:——
New electron donors 4,5-ethylenedithio-4′,5′-(1-hydroxypropane-2,3-diyldithio)tetrathiafulvalene (1a), 4,5-bis(methylthio)-4′,5′-(1-hydroxypropane-2,3-diyldithio)tetrathiafulvalene (1b), 4,5-ethylenedithio-4′,5′-(1,4-dihydroxybutane-2,3-diyldithio)tetrathiafulvalene (1c) and 4,5-bis(methylthio)-4′,5′-(1,4-dihydroxybutane-2,3-diyldithio)tetrathiafulvalene (1d) with hydroxymethyl groups
were synthesized and characterized spectroscopically. Their redox potentials
were determined using cyclic voltammetry. Crystals of cation-radical salts
based on these new electron donors, (1a)2·ClO4, (1c)2·Cl, (1c)2·I, were obtained
by standard electrochemical methods. The crystal structure of (1c)2·Cl was determined
and studied. Electrical measurements of the cation-radical salts indicated
that they displayed semiconducting behaviors, however, with good conductivities
at room temperature: 0.68 S cm−1 for (1a)2·ClO4
and 0.10 S cm−1 for (1c)2·Cl.
新电子给体 4,5-亚乙基二硫基-4',5'-(1-羟基丙烷-2,3-二基二硫基)四硫富瓦烯 (1a)、4,5-双(甲硫基)-4',5'-(1-羟基丙烷) -2,3-二基二硫基)四硫富瓦烯 (1b)、4,5-亚乙基二硫基-4',5'-(1,4-二羟基丁烷-2,3-二基二硫基)四硫富瓦烯 (1c) 和 4,5-双(甲硫基) -4',5'-(1,4-二羟基丁烷-2,3-二基二硫代)四硫富瓦烯 (1d) 含羟甲基
进行了合成并通过光谱表征。它们的氧化还原电位
使用循环伏安法测定。阳离子自由基盐晶体
基于这些新的电子给体,得到了(1a)2·ClO4、(1c)2·Cl、(1c)2·I
通过标准电化学方法。 (1c)2·Cl晶体结构的测定
并研究了。所示的阳离子自由基盐的电测量
然而,它们表现出半导体行为,具有良好的导电性
室温下:(1a)2·ClO4 为 0.68 S cm−1
(1c)2·Cl 为 0.10 S cm−1。