title: [Thermodynamic and spectroscopic study of complex formation of dipeptides with dimethyl sulfoxide in their aqueous solutions].
abstract: Peculiarities of intermolecular interactions in water-dimethylsulfoxide solutions of dipeptides-glycyl-glycine, beta-alanyl-glycine, beta-alanyl-beta-alanine, DL-alpha-alanyl-DL-alpha-alanine, DL-alpha-alanyl-DL-valine-were analysed on the basis of thermodynamic characteristics and data on IR-spectra. Dimethylsulfoxide additions were shown to cause destruction of peptide associates present in aqueous solutions due to the formation of stronger bonds "peptide-DMSO". The existence of complexes between dimethylsulfoxide and beta-alanyl-glycine, beta-alanyl-beta-alanine, DL-alpha-alanyl-DL-alpha-alanine was found. The mechanism of their formation was determined by the dipeptide structure.
authors: O V
authors: OV
authors: Kulikov
authors: V G
authors: VG
authors: Badelin
authors: G A
authors: GA
authors: Krestov
mesh_terms: D004121:Dimethyl Sulfoxide / Q000737:chemistry*; D004151:Dipeptides / Q000737:chemistry*; D012996:Solutions; D013056:Spectrophotometry, Ultraviolet; D013816:Thermodynamics; D014867:Water / Q000737:chemistry*
chemical_list: D004151:Dipeptides; D012996:Solutions; D014867:Water; D004121:Dimethyl Sulfoxide
vernacular_title: Termodinamicheskoe i spektroskopicheskoe issledovanie kompleksoobrazovaniia dipeptidov s dimetilsul'foksidom v ikh vodnykh rastvorakh.