作者: Teresa Ann Franklin , Mary Frances Richardson
DOI: 10.1016/S0020-1693(00)84190-0
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摘要: Abstract Synthesis and infrared spectra are reported for PM·2HCl, PM·HCl, PM·2H2O, PN·HCI, PN 16 metal compounds containing PM in various protonation states (PM pyridoxamine pyridoxine, respectively). The pyridine ring breathing frequencies were identified by comparison of the deuterated nondeuterated compounds. They, together with region −NH+3 combination bands, used to determine tautomeric form vitamins thus identify metal-binding sites PN. In all complexes neutral , ligand exists as zwitterion nitrogen protonated. ions chelated through phenolate adjacent hydroxymethyl or aminomethyl groups.