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Lookup NU author(s): Dr Ross Harrington,
Emeritus Professor Bill Clegg
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The synthesis of three novel thiophene-based conjugated molecules (1-3) is presented. We report the electronic and redox properties of these compounds along with the corresponding electrochemically prepared polymers. The structures of compounds 1 and 2 have been confirmed by single-crystal X-ray diffraction studies. Noncovalent S center dot center dot center dot O interactions in 1 act to hold the molecule in a planar conformation and this is in stark contrast to the twisted nature of the 3,4-ethylenedithiothiophene (EDTT) analogue. The degree of planarity within the molecules dictates the effective conjugation length within the materials and also the packing of the molecules in the solid state. CGL-TOF studies give hole mobilities up to 4 x 10(-5) cm(2) V-1 s(-1) for compound 1 and 1.5 x 10(-5) cm(2) V-1 s(-1) for 2.
Author(s): McEntee GJ, Skabara PJ, Vilela F, Tierney S, Samuel IDW, Gambino S, Coles SJ, Hursthouse MB, Harrington RW, Clegg W
Publication type: Article
Publication status: Published
Journal: Chemistry of Materials
Print publication date: 02/04/2010
ISSN (print): 0897-4756
ISSN (electronic): 1520-5002
Publisher: American Chemical Society
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