Linear Fused Dithieno [2,3-b:3′2′-d]-thiophene Diimides

Linear fused dithieno[2,3-b:3 ' 2 '-d]thiophene dilmides (DTTDIs, 1-4) were synthesized. Physicochemical investigations suggested that these diimides might be used as potential n-channel organic semiconductors. Single-crystal analysis of N-propyl DTTDI (1) revealed that molecules adopt a layered herringbone packing motif.