Misaki Yohji, Noda Shigenobu, Kato Minami, Yamauchi Tomokazu, Oshima Toko, Yoshimura Aya, Shirahata Takashi, Yao Masaru
Department of Applied Chemistry, Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, 790-8577, Japan.
Research Unit for Power Generation and Storage Materials, Ehime University, 3 Bunkyo-cho, Matsuyama, 790-8577, Japan.
ChemSusChem. 2020 May 8;13(9):2312-2320. doi: 10.1002/cssc.202000178. Epub 2020 Apr 24.
Fused donor-acceptor triads composed of two tetrathiafulvalenes (TTFs) and benzoquinone (BQ; 1) or naphthoquinone (NQ; 2) were successfully synthesized. X-ray structure analysis of the bis(n-butylthio) derivative revealed that the molecules are stacked in a head-to-tail manner. The bis(n-hexylthio)-1 exhibited six-pairs of one-electron transfer waves in the cyclic voltammogram, corresponding to the formation of both reduction and oxidation states from -2 to +4. The unsubstituted and bis(methylthio) derivatives of 1 and 2 were active materials in positive electrodes for rechargeable batteries, several of which displayed energy densities exceeding 800 mWh g . The bis(methylthio)-2 also functions as a positive electrode material for a rechargeable sodium-ion battery.
成功合成了由两个四硫富瓦烯（TTF）和苯醌（BQ；1）或萘醌（NQ；2）组成的稠合供体-受体三联体。双（正丁硫基）衍生物的X射线结构分析表明，分子以头对尾的方式堆积。双（正己硫基）-1在循环伏安图中表现出六对单电子转移波，对应于从-2到+4的还原态和氧化态的形成。1和2的未取代和双（甲硫基）衍生物是可充电电池正极中的活性材料，其中几种的能量密度超过800 mWh g 。双（甲硫基）-2还用作可充电钠离子电池的正极材料。
