Functionally layered dendrimers:: A new building block and its application to the synthesis of multichromophoric light-harvesting systems
Functionally layered dendrimers:: A new building block and its application to the synthesis of multichromophoric light-harvesting systems
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DOI：
10.1021/ol0516824
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发表时间：
2005-09-29
期刊：
影响因子：
5.2
通讯作者：
Fréchet, JMJ
中科院分区：
文献类型：
--
作者：
Dichtel, WR;Hecht, S;Fréchet, JMJ
以模块化官能团单体为基础，发展了一种内部官能团的发散合成方法。这一策略被应用于构建一个光捕获树状聚合物，其中一组萘吡喃酮染料位于内部，另一组香豆素发色团位于邻近的外层，围绕卟啉受体。定量的能量转移从两个供体色素被观察到，产生专属的发射从卟啉核心在所有激发波长。
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 energy transfer from both donor pigments is observed, giving rise to exclusive emission from the porphyrin core over all excitation wavelengths.