New pi-conjugated system with a rigid framework of 1,8-anthrylene-ethynylene cyclic dimer and its monoanthraquinone analogue.
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-plane deformation of the inner carbonyl moiety and dimer formation in crystals and solution.
Toyota
Shinji
S
Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Okayama 700-0005, Japan. stoyo@chem.ous.ac.jp
Kurokawa
Megumi
M
Araki
Mai
M
Nakamura
Kazuya
K
Iwanaga
Tetsuo
T