Chemistry Letters, Vol.39, No.7, 771-773, 2010
Synthesis and Crystal Structures of 1,4,8,11-Tetraalkyl-6,13-diphenylpentacenes
Two 1,4,8,11-tetraalkyl-6,13-diphenylpentacenes were prepared. X-ray analysis revealed that the methyl derivative had a herringbone arrangement with pi-overlap, while the propyl derivative had a slipped-parallel structure without pi-overlap. The solid-state order reflected UV-vis absorption spectra in the solid state.