Spectrophotometric determination of acidity constants of some anthraquinones and anthrones in methanol-water mixtures.
The acidity constants of some synthetic derivatives of 9,10-anthraquinone and 9-anthrone in methanol-water mixtures at 25 degrees have been determined spectrophotometrically. A linear reverse relationship is observed between pK(a1) of all acids and the mole fraction of methanol. The influence of substituents in the molecular structure on the ionization constants is discussed.
Shamsipur
M
M
Department of Chemistry, Shiraz University, Shiraz, Iran.
Ghasemi
J
J
Tamaddon
F
F
Sharghi
H
H