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Light‐Harvesting Nanotubes Formed by Supramolecular Assembly of Aromatic Oligophosphates
Author(s) -
Bösch Caroline D.,
Langenegger Simon M.,
Häner Robert
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201604508
Subject(s) - phenanthrenes , phenanthrene , pyrene , chromophore , trimer , supramolecular chemistry , photochemistry , supramolecular assembly , chemistry , antenna effect , fluorescence , excimer , materials science , organic chemistry , luminescence , dimer , molecule , optoelectronics , physics , quantum mechanics
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.