Jump to main content
Jump to site search

Issue 3, 2011
Previous Article Next Article

Vinyl spacers—tuning electron transfer through fluorene-based molecular wires

Author affiliations

Abstract

Rigid and soluble electron donor–acceptor conjugates (3 and 11) that combine π-extended tetrathiafulvalene (exTTF) as an electron donor and C60 as an electron acceptor have been synthesized using oligo-vinylfluorene (oFV) linkers to connect the electroactive entities. Fluorescence and transient absorption measurements confirm that light-induced excitation induces charge-transfer reactions over distances of 28 Å in THF. The incorporation of vinylene spacers into oligofluorene molecular wires has been shown both experimentally and theoretically to improve the charge-transfer features significantly to give a β value of 0.075 ± 0.001 Å−1. Enhanced π-conjugation caused by higher orbital overlap is responsible for this trend.

Graphical abstract: Vinyl spacers—tuning electron transfer through fluorene-based molecular wires

Back to tab navigation

Supplementary files

Publication details

The article was received on 28 Sep 2010, accepted on 15 Dec 2010 and first published on 08 Feb 2011


Article type: Paper
DOI: 10.1039/C0EE00499E
Citation: Energy Environ. Sci., 2011,4, 765-771
  •   Request permissions

    Vinyl spacers—tuning electron transfer through fluorene-based molecular wires

    M. Wielopolski, J. Santos, B. M. Illescas, A. Ortiz, B. Insuasty, T. Bauer, T. Clark, D. M. Guldi and N. Martín, Energy Environ. Sci., 2011, 4, 765
    DOI: 10.1039/C0EE00499E

Search articles by author

Spotlight

Advertisements