Synthesis and electropolymerization of hexadecyl functionalized bithiophene and thieno[3,2-b]thiophene end-capped with EDOT and EDTT units
McEntee, Greg J. and Skabara, Peter J. and Vilela, Filipe and Tierney, Steven and Samuel, Ifor D. W. and Gambino, Salvatore and Coles, Simon J. and Hursthouse, Michael B. and Harrington, Ross W. and Clegg, William (2010) Synthesis and electropolymerization of hexadecyl functionalized bithiophene and thieno[3,2-b]thiophene end-capped with EDOT and EDTT units. Journal of Materials Chemistry, 22 (9). pp. 3000-3008. ISSN 0959-9428 (https://doi.org/10.1021/cm100514r)
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Abstract
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. Non-covalent S…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 × 10-5 cm2 V-1 s-1 for compound 1 and 1.5 × 10-5 cm2 V-1 s-1 for 2.
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Item type: Article ID code: 28454 Dates: DateEvent11 May 2010Published2 April 2010Published Online19 March 2010AcceptedSubjects: Science > Chemistry > Physical and theoretical chemistry Department: Faculty of Science > Pure and Applied Chemistry Depositing user: Mrs Roslyn MacDonald Date deposited: 22 Oct 2010 11:13 Last modified: 30 Sep 2024 00:18 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/28454