Light-Harvesting Nanotubes Formed by Supramolecular Assembly of Aromatic Oligophosphates

Angew Chem Int Ed Engl. 2016 Aug 16;55(34):9961-4. doi: 10.1002/anie.201604508. Epub 2016 Jul 4.

Abstract

A 2,7-disubstituted phosphodiester-linked phenanthrene trimer forms tubular structures in aqueous media. Chromophores are arranged in H-aggregates. Incorporation of small quantities of pyrene results in the development of light-harvesting nanotubes in which phenanthrenes act as antenna chromophores and pyrenes as energy acceptors. Energy collection is most efficient after excitation at the phenanthrene H-band. Fluorescence quantum yields up to 23 % are reached in pyrene doped, supramolecular nanotubes.

Keywords: H-aggregates; energy transfer; light-harvesting antenna; nanotubes; supramolecular polymers.

Publication types

  • Research Support, Non-U.S. Gov't