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Thiazole-induced rigidification in substituted dithieno-tetrathiafulvalene : the effect of planarisation on charge transport properties

Taylor, Rupert G. D. and Cameron, Joseph and Wright, Iain A. and Thomson, Neil and Avramchenko, Olena and Kanibolotsky, Alexander L. and Inigo, Anto R. and Tuttle, Tell and Skabara, Peter J. (2015) Thiazole-induced rigidification in substituted dithieno-tetrathiafulvalene : the effect of planarisation on charge transport properties. Beilstein Journal of Organic Chemistry, 11. pp. 1148-1154. ISSN 1860-5397

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Abstract

Two novel tetrathiafulvalene (TTF) containing compounds 1 and 2 have been synthesised via a four-fold Stille coupling between a tetrabromo-dithienoTTF 5 and stannylated thiophene 6 or thiazole 4. The optical and electrochemical properties of compounds 1 and 2 have been measured by UV-vis spectroscopy and cyclic voltammetry and the results compared with density functional theory (DFT) calculations to confirm the observed properties. Organic field effect transistor (OFET) devices fabricated from 1 and 2 demonstrated that the substitution of thiophene units for thiazoles was found to increase the observed charge transport, which is attributed to induced planarity through S-N interactions of adjacent thiazole nitrogen atoms and TTF sulfur atoms and better packing in the bulk.

Item type: Article
ID code: 54067
Keywords: non-covalent interactions, organic field effect transistor (ofet), organic semiconductors, tetrathiafulvalene, thiazole, Chemistry, Organic Chemistry
Subjects: Science > Chemistry
Department: Faculty of Science > Pure and Applied Chemistry
Technology and Innovation Centre > Photonics
Depositing user: Pure Administrator
Date deposited: 25 Aug 2015 13:48
Last modified: 26 Sep 2017 02:12
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URI: https://strathprints.strath.ac.uk/id/eprint/54067
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