Stable, Crystalline Acenedithiophenes with up to Seven Linearly Fused Rings

We report the synthesis of a series of crystalline acenedithiophenes with up to seven linearly fused rings and silylethynyl substituents. These
functional groups are designed to both improve solubility and enhance cofacial interactions in the solid. We discuss the crystal packing of
these materials, as well as their physical properties such as oxidation potential, UV−vis absorption, fluorescence emission, and decomposition
pathways.