Synthesis and properties of the antiand synisomers of dibenzothieno[b,d]pyrroleElectronic supplementary information (ESI) available: Synthesis, single-crystal X-ray analysis of anti-1and 7, physicochemical properties, X-ray diffraction studies, AFM studies, device fabrication and evaluation and 1H and 13C NMR spectra. CCDC 697266 and 697267. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/b813683aCrystallographic data for anti-1: C16H9NS2, M= 279.36, monoclinic, space group P21/n, a= 9.916(2), b= 10.619(2), c= 23.425(5) , V= 2453.0(8) 3, Z= 8, Dc= 1.513 g cm−3, T= 173(2) K, reflections collected: 7940, independent reflections: 4328 (Rint= 0.0199), GOF = 1.168, 343 parameters, R1= 0.0623, wR2= 0.0993 for all reflections. CCDC 697266.Crystallographic data for 7: C22H21NS2, M= 363.52, monoclinic, space group P21/c, a= 11.582(2), b= 8.1596(16), c= 19.770(4) , V= 1787.7(6) 3, Z= 4, Dc= 1.351 g cm−3, T= 113(2) K, reflections collected: 12637, independent

A novel type of antiand synisomers of a pentacyclic compound consisting of two thiophene rings and one pyrrole ring were efficiently synthesized from benzo[b]thiophene, and the antiisomer exhibits better charge transport and OFET properties compared with the synisomer and its N-hexyl substitution. [ABSTRACT FROM AUTHOR]