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UV absorption spectra and the physical nature of the optical properties of pyridoxine hydrochloride

  • E. A. Illarionova
  • A. I. Illarionov
  • O. L. Nikonovich
Proceedings of the XV International Conference “Luminescence and Laser Physics” (LLP-2016)
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Abstract

A study of the nature of electronic transitions in different structural forms of pyridoxine hydrochloride molecule shows that the maxima in experimental absorption spectra at wavelengths 244 ± 1 nm, 310 ± 1 nm (pH 12.5), 291 ± 1 nm (pH 1.1, pH 4.1), 258 ± 1 nm, 291 ± 1 nm, and 324 ± 1 nm (pH 4.15) are, along with the corresponding lines in theoretical spectra, due to electron transitions from occupied molecular p-orbitals localized on the nitrogen atoms in the structure of pyridine rings to the vacant p-orbitals of double C=N bonds.

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Copyright information

© Allerton Press, Inc. 2017

Authors and Affiliations

  • E. A. Illarionova
    • 1
  • A. I. Illarionov
    • 2
  • O. L. Nikonovich
    • 3
  1. 1.Irkutsk State Medical UniversityIrkutskRussia
  2. 2.Irkutsk National Research Technical UniversityIrkutskRussia
  3. 3.Irkutsk State University of Railway EngineeringIrkutskRussia

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