Polyphenylene Dendrimers with Different Fluorescent Chromophores Asymmetrically Distributed at the Periphery
作者:Tanja Weil、Uwe M. Wiesler、Andreas Herrmann、Roland Bauer、Johan Hofkens、Frans C. De Schryver、Klaus Müllen
DOI:10.1021/ja010579g
日期:2001.8.1
A new synthetic approach leading to asymmetrically substituted polyphenylene dendrimers is presented. Following this method, polyphenylene dendrimers decorated with an increasing number of chromophores at the periphery have been obtained up to the second generation. Especially the synthesis of a polyphenylene dendrimer beating three donor chromophores and one acceptor chromophore has been realized. Intramolecular energy transfer within this molecule is demonstrated by applying absorption and fluorescence measurements.