Abstract

Abstract Hydrogen bonded compounds obtained between the base Pyridoxine and Hydrogen Chloride, Hydrogen Bromide, Hydrogen Iodide and Nitric Acids are studied by IR Spectroscopy, in the region from 4.000 to 400 cm−1, in the solid state. Results show that there was formation of hydrogen bonded complex between Pyridoxine and the respective acids. Hydrogen Chloride is bonded to Pyridoxine through its N group while the other acids are bonded to its ring. It was still verified low intensity vibrations for the halogenated ions and medium to strong bands for the nitrate ion. In the presence of inorganic acids, Pyridoxine is found in the “enolic” form, once the v (CO−) band is not observed.

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