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Protonation constants of some substituted salicylideneanilines in ethanol-water mixtures

✍ Scribed by Fitnat Köseoğlu; Esma Kgilgiç; Esin Canel; Nazife Ylmaz

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
609 KB
Volume
293
Category
Article
ISSN
0003-2670

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✦ Synopsis

Protonation constants of some substituted salicylideneanilines have been determined in ethanol-water mixtures at ionic strength of 0.1 M and at 25°C. A potentiometric method was used and calculation was done by Martell's and Motekaitis' PKAS computer programme. The trend in the values of protonation constants of Schiff's bases were explained in terms of the nature of the substituent and the dielectric constant of medium. The applicability of the Hammett equation to the effect of substituents in Schiff's bases is discussed.

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