Acid Dissociation Constants of 4-Substituted Catechol Derivatives
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چکیده
منابع مشابه
Determination of the acid dissociation constants of the p-sulphonato-calix[4]arene
The acid dissociation constants of the hydroxyl groups in 25, 26, 27, 28-tetrahydroxy-5, 11, 17, 23-tetrasulphonic-calix[4]arene (SC4) were determined at 25οC by a combination of potentiometric and spectrophotometric titration method. The first and second acid dissociation constants (pKa1, pKa2) were found to be 3.19 and 12.1, which demonstrated pKa shift due to intramolecular hydrogen bonding ...
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ژورنال
عنوان ژورنال: Nippon kagaku zassi
سال: 1969
ISSN: 0369-5387,2185-0917
DOI: 10.1246/nikkashi1948.90.3_267