Abstract
A series of materials for field effect transistors (FETs), with pyrene at the core and four substituted thiophene arms of different lengths (1-3 thiophene units) have been synthesized using Suzuki cross-coupling reactions and characterized by H-1 NMR, C-13 NMR, UV-vis absorption, emission spectroscopy, and in one case by X-ray crystallography. (C) 2010 Elsevier B.V. All rights reserved.