Triazole-linked dendro[60]fullerenes: modular synthesis via a ‘click’ reaction and acidity-dependent self-assembly on the surface
作者:Ilias M. Mahmud、Ningzhang Zhou、Li Wang、Yuming Zhao
DOI:10.1016/j.tet.2008.08.083
日期:2008.12
A series of Fréchet-type dendron functionalized [60]fullerene derivatives that bear a 1,2,3-triazole linkage group, referred to as triazole-linked dendro[60]fullerenes, were prepared via a modular synthetic protocol based on a Cu-catalyzed [3+2] cycloaddition (‘click’) reaction. Electronic properties of these dendro[60]fullerenes were investigated by UV–vis spectroscopy and cyclic voltammetry. Interfacial
通过基于Cu-的模块化合成方案,制备了一系列具有1,2,3-三唑键合基团的Fréchet型树枝状官能化的[60]富勒烯衍生物,称为三唑连接的树枝状[60]富勒烯。催化的[3 + 2]环加成('click')反应。通过紫外可见光谱和循环伏安法研究了这些树状[60]富勒烯的电子性质。使用原子力显微镜(AFM)研究了这些dendro [60]富勒烯的界面超分子自组装行为。所得的自组装体在表面上显示出不同的纳米级堆积几何形状和形态,这可由诸如树突的生成,外围功能的性质以及所施加的实验条件(例如,酸度)之类的参数控制。分子结构和自组装结果之间的关系进行了调查和讨论。这项研究的结果表明,在形状和尺寸方面,可以获得更好的“自下而上”控制树枝状聚合物-富勒烯杂化材料自组装的新途径。