title: [Acid-base, tautomeric and isomeric equilibrium of pyridoxal oximes, pyridoxal-5'-phosphate and some of their analogs].
abstract: Success has been achieved in detailed understanding of tautomeric and isomeric equilibria and search for the new tautomeric and isomeric forms of oximes of pyridoxal, pyridoxal-5'-phosphate and some of their analogs, their presence is explained. This is due to a careful deconvolution of absorption spectra of different ionic forms of oximes into bands corresponding to separate electronic transitions. The spectroscopical data and the results of quantum-chemical calculations are compared for all the forms of compounds under investigation. As it has been found to be valid for other vitamin B6 derivatives as well, quantum-chemical calculations can be used for analytical purposes.
authors.forename: V A
authors.initials: VA
authors.lastname: Bokovoĭ
authors.forename: N P
authors.initials: NP
authors.lastname: Bazhulina
authors.forename: Iu V
authors.initials: IuV
authors.lastname: Morozov
authors.forename: V O
authors.initials: VO
authors.lastname: Chekhov
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D007536:Isomerism; D010091:Oximes; D011730:Pyridoxal; D011732:Pyridoxal Phosphate; D013056:Spectrophotometry, Ultraviolet
chemical_list: D010091:Oximes; D011730:Pyridoxal; D011732:Pyridoxal Phosphate
vernacular_title: Kislotno-osnovnye, tautomernye i izomernye ravnovesiia oksimov piridoksaliia, piridoksal'-5'-fosfata i nekotorykh ikh analogov.