Shape-Persistent, Fluorescent Polyphenylene Dyads and a Triad for Efficient Vectorial Transduction of Excitation Energy This research was supported by the TMR European Research Program through the SISITOMAS project, the Volkswagen-Stiftung, and the Bundesministerium für Bildung and Forschung. We also thank S. Spang and C. Beer for support in the synthetic work.

Abstract

Dendritic multichromophores based on a rigid polyphenylene scaffold contain up to three different types of rylene chromophores incorporated at the focal point, the scaffold, and the periphery of the dendrimer. An energy gradient between the periphery and the core is thus generated and allows an efficient transfer of excitation energy (see picture).