Structures of sterically hindered p-hydroxystyrylpyridines and acid-base transformations of their quaternary salts
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The structures of p-hydroxystyrylpyridines and a number of their new quaternary salts were studied by means of electronic absorption spectra. The reverse transformation of the salts to the corresponding quinonoid compounds was examined as a function of the pH of the medium, and the equilibrium constants were determined.
KeywordsOrganic Chemistry Absorption Spectrum Equilibrium Constant Electronic Absorption Electronic Absorption Spectrum
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