Solvent Effect on The Absorption Spectra of Acetylpyridines And Their N-Oxides

Authors : Y.m. ISSA

Pages : 0-0

Doi:10.1501/Commub_0000000109

View : 12 | Download : 9

Publication Date : 1983-01-01

Article Type : Research Paper

Abstract :The electronic absorption spectra of acetylpyridines and acetylpyridine N-oxides were in- vestigated in some organic solvents of varying polarities. The spectra indicate the presence of two absorption bands insert ignore into journalissuearticles values(A); and insert ignore into journalissuearticles values(B);, the first is assigned to the local TT —> transition and the se- cond is assigned to TC -> `* transition influenced by charge transfer insert ignore into journalissuearticles values(C.T.); interaction. The n was observed as a shoulder in non-polar solvents and disappeared completely in polar solvents. The C.T. nature of the band insert ignore into journalissuearticles values(B); is asscertained and its position is discussed in relation to mole- cular structure and solvent effect.
Keywords : Solvent, Absorption, Acetylpyridines