Characterization of new oxovanadium(IV) complexes of saccharides.
Oxovanadium(IV) complexes of the monosaccharides D- and L-arabinose, D-galactose, D-mannose, D-lyxose, D-xylose and the disaccharide maltose were obtained in aqueous solutions at pH 13. Their sodium salts were precipitated with absolute ethanol and characterized by UV-vis spectroscopy (absorption and reflectance), thermo-analytical (TG and DTA) data, magnetic susceptibility measurements and IR-spectroscopy. All the complexes were found to be mononuclear, possessing the VO2+ moiety. The IR spectra were analyzed and discussed in detail allowing one to determine the characteristics of the metal-to-ligand interactions.
Williams
P A
PA
Centro de Química Inorgánica (CEQUINOR/CONICET, UNLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Argentina.
Etcheverry
S B
SB
Baran
E
E
D002412:Cations / Q000737:chemistry / Q000378:metabolism; D011232:Chemical Precipitation; D006863:Hydrogen-Ion Concentration; D008024:Ligands; D008280:Magnetics; D008320:Maltose / Q000737:chemistry* / Q000378:metabolism; D009005:Monosaccharides / Q000737:chemistry* / Q000378:metabolism; D012492:Salts; D012964:Sodium / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013696:Temperature; D014638:Vanadates / Q000737:chemistry* / Q000378:metabolism; D014867:Water / Q000378:metabolism
D002412:Cations; D008024:Ligands; D009005:Monosaccharides; D012492:Salts; D014867:Water; C075743:oxovanadium IV; D014638:Vanadates; D008320:Maltose; D012964:Sodium