Synthesis, structure, and properties of twisted π-conjugated molecules featuring three-dimensional π–π interactions in solid states†
Abstract
Thiophene-containing twisted π-conjugated molecules were synthesized by introducing methyl groups to sterically hindered positions. Three-dimensional π–π stacking was observed in the solid state, and the hole-transporting ability up to 1.85 × 10−4 cm2 V−1 s−1 was confirmed by constructing field effect transistor devices.