Functionally Layered Dendrimers: A New Building Block and Its Application to the Synthesis of Multichromophoric Light-Harvesting Systems
作者:William R. Dichtel、Stefan Hecht、Jean M. J. Fréchet
DOI:10.1021/ol0516824
日期:2005.9.1
[reaction: see text] A divergent synthesis of internally functionalized dendrimers based on a modular functional monomer has been developed. This strategy was applied to the construction of a light-harvesting dendrimer containing one set of naphthopyranone dyes located at the interior and another set of coumarin chromophores located in the adjacent outer layer surrounding a porphyrin acceptor. Quantitative
[反应:见正文]已经开发了基于模块功能单体的内部功能化树枝状聚合物的多样化合成。该策略被应用于构建光收集树枝状聚合物,该树枝状聚合物包含位于内部的一组萘并吡喃酮染料和位于围绕卟啉受体的相邻外层的另一组香豆素生色团。观察到来自两种供体颜料的定量能量转移,从而在所有激发波长上引起了卟啉核的排他性发射。