Synthesis and spectroscopic study of phenylene-(poly)ethynylenes substituted by amino or amino/cyano groups at terminal(s): electronic effect of cyano group on charge-transfer excitation of acetylenic π-systems

Jing-Kun Fang, De-Lie An, Kan Wakamatsu, Takeharu Ishikawa, Tetsuo Iwanaga, Shinji Toyota, Shin-ichi Akita, Daisuke Matsuo, Akihiro Orita, and Junzo Otera

Synthesis and spectroscopic study of phenylene-(poly)ethynylenes substituted by amino or amino/cyano groups at terminal(s): electronic effect of cyano group on charge-transfer excitation of acetylenic π-systems

Tetrahedron

66

29

5479

5485