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Efficient Energy Transfer in Mixed Columnar Stacks of Hydrogen-Bonded Oligo(p-phenylene vinylene)s in Solution


  • This work was supported by the Royal Netherlands Academy of Arts and Sciences, the Council for Chemical Sciences of the Netherlands Organization for Scientific Research (CW-NWO), and the Engineering and Physical Science Research Council (UK). L.M.H., C.D., and C.S. thank St John's College Cambridge, IRC Nanotechnology (Cambridge-UCL-Bristol), and the EPSRC (Advanced Research Fellowship), respectively, for financial assistance. D.B. is a senior research fellow of the Belgian National Science Foundation (FNRS). The authors thank Jeroen van Herrikhuyzen for the synthesis of MOPV4, Joost van Dongen for matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) MS measurements and E. Hennebicq and P. Leclère in Mons.


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Ultrafast energy transfer has been observed in mixed supramolecular stacks of mono-functionalized oligo(phenylene vinylene)s (MOPVs) in solution. Extended columnar aggregates of MOPV3 incorporating MOPV4 show a very efficient quenching of the MOPV3 fluorescence, which indicates that energy transfer (ENT) occurs within the supramolecular stacks from the shorter oligomer to the longer one (see schematic representation).