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.

J.-K. Fang, D.-L. An, K. Wakamatsu, T. Ishikawa, T. Iwanaga, S. Toyota, S.-i. Akita, D. Matsuo, A. Orita, J. Otera

Tetrahedron

66

29

5479

5485