Two types of pi-conjugated compounds were synthesized by Sonogashira coupling, and their structures and properties were investigated by X-ray analysis and spectroscopic measurements. The monoanthraquinone compound features an out-of-planedeformation of the inner carbonyl moiety and dimer formation in crystals and solution.
Two types of 1,8-anthrylene cyclic trimers with acetylene and diacetylene linkers were synthesized by macrocyclization of the acyclic precursors with Eglinton coupling as examples of the smallest a...