Synthesis of azobenzene substituted tripod-shaped bi(p-phenylene)s. Adsorption on gold and CdS quantum-dots surfaces
作者:Jesús Hierrezuelo、Rodrigo Rico、María Valpuesta、Amelia Díaz、J. Manuel López–Romero、Martins Rutkis、Jana Kreigberga、Valdis Kampars、Manuel Algarra
DOI:10.1016/j.tet.2013.02.054
日期:2013.4
We report here the synthesis of several tripod-shaped oligo(p-phenylene)s with legs composed of two phenylene units. Each leg is end-capped with a thioacetate group for adhesion to metallic surfaces. An azobenzene chromophore group is present on the functional arm of the tripod. The key step in the synthesis is the Pd-catalyzed Suzuki cross-coupling reaction of the silicon derivative core molecule
我们在这里报告了几种具有由两个亚苯基单元组成的支腿的三脚架形的低聚(对-亚苯基)的合成。每条腿都用硫代乙酸酯基团封端,以粘附在金属表面上。三脚架的功能臂上有一个偶氮苯生色团。合成中的关键步骤是Pd催化的硅衍生物核心分子与取代的苯基部分和偶氮苯衍生物的Suzuki交叉偶联反应。通过热蒸发制备的金表面和CdS量子点表面被三脚架状分子覆盖。修饰的表面通过原子力显微镜(AFM),荧光和开尔文探针分析进行表征。