Spectrophotometric determination of acidity constants of some anthraquinones and anthrones in methanol-water mixtures |
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| Authors: | Shamsipur M Ghasemi J Tamaddon F Sharghi H |
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| Institution: | Department of Chemistry, Shiraz University, Shiraz, Iran. |
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| Abstract: | 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. |
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