π-Extended Macrocyclic Oligothiophene Heptamer and Tetradecamer: Ringsize Effects on the Physical Properties and Morphological Features
作者:Hideyuki Shimizu、Pochi Huang、Eigo Isomura、Tohru Nishinaga、Masahiko Iyoda
DOI:10.1246/bcsj.20210156
日期:2021.9.15
a round shape-persistent structure to produce crystals, whereas the corresponding tetradecamer shows morphological diversity to form single crystals, rods, ovals, and balls. The surface structures of small rods, ovals, and balls were investigated by absorption spectra and PXRD analysis. By cyclic voltametric analysis, heptamer and tetradecamer exhibit reversible two-step redox behavior reflecting moderate
报道了 π 扩展大环低聚噻吩七聚体和十四聚体的合成、X 射线结构分析、氧化还原行为和形态特征。由于内部域和外部域之间的纳米相分离,丁基取代的 π 扩展大环低聚噻吩在固态下表现出显着的环尺寸效应。在具有相同组成式的大环中,七聚体具有圆形持久结构以产生晶体,而相应的十四聚体则表现出形态多样性,形成单晶、棒状、椭圆形和球状。通过吸收光谱和 PXRD 分析研究了小棒、椭圆和球的表面结构。通过循环伏安分析,七聚体和十四聚体表现出可逆的两步氧化还原行为,反映了中等供体能力,