Study of Complex Formation in B15C5–Chloroform–Substituted Acetic Acids Extraction Systems by IR Spectroscopyстатья
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Дата последнего поиска статьи во внешних источниках: 31 июля 2019 г.
Аннотация:An IR spectroscopic examination of extraction system components was undertaken to study the complex formation involved in the extraction of acetic, monochloroacetic, dichloroacetic, and trichloroacetic acids into benzo-15-crown-5 in chloroform. It was shown that acid extraction into chloroform (blank extraction) may give adducts by two mechanisms involving either the chloroform hydrogen atom and the carbonyl oxygen of the acid or the chloroform hydrogen atom and the chlorine atom of the chloroacetic acids. A spectral criterion for the complexation with benzo-15-crown-5 was proposed. It was shown that the extractable complexes incorporate water molecules.