AI Article Synopsis
- The text discusses the synthesis and characterization of a novel electron donor-acceptor dyad composed of a polychlorotriphenylmethyl radical linked to a tetrathiafulvalene unit via a π-conjugated bridge.
- The study evaluates intramolecular electron transfer and magnetic properties using various spectroscopy methods and finds that the radical dyad shows unique self-assembly into a supramolecular structure with distinct donor and acceptor areas.
- Temperature-dependent X-ray crystallographic analysis reveals that the molecules within the crystal evolve differently in their electronic delocalization as temperature decreases.
Article Abstract
An electron donor-acceptor dyad based on a polychlorotriphenylmethyl (PTM) radical subunit linked to a tetrathiafulvalene (TTF) unit through a π-conjugated N-phenyl-pyrrole-vinylene bridge has been synthesized and characterized. The intramolecular electron transfer process and magnetic properties of the radical dyad have been evaluated by cyclic voltammetry, UV/Vis spectroscopy, vibrational spectroscopy, and ESR spectroscopy in solution and in the solid state. The self-assembling abilities of the radical dyad and of its protonated non-radical analogue have been investigated by X-ray crystallographic analysis, which revealed that the radical dyad produced a supramolecular architecture with segregated donor and acceptor units in which the TTF subunits were arranged in 1D herringbone-type stacks. Analysis of the X-ray data at different temperatures suggests that the two inequivalent molecules that form the asymmetric unit of the crystal of the radical dyad evolve into an opposite degree of electronic delocalization as the temperature decreases.
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| http://dx.doi.org/10.1002/chem.201500497 | DOI Listing |
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