Interactions of a molybdenum(VI) oxo-cation with some uronic acids: a 1H- and 13C-nuclear magnetic resonance study.
The interactions of molybdate, [MoO4]2- with some uronic acids in aqueous D2O solution were studied by 1H- and 13C-NMR. Evidence is presented for a specific binding site of an Mo(VI) oxo-cation (Mo2O5(2+] with alpha-,beta-D-glucuronic acid. It is proposed that complexation involves the carboxylate oxygen (O-6b) and O-4 of the hydroxyl oxygen in a pyranose form (4C1), in the pH region 3.5-5.8.
Stojkovski
S
S
Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada.
Whitfield
D M
DM
Magee
R J
RJ
James
B D
BD
Sarkar
B
B
D002247:Carbon Isotopes; D055598:Chemical Phenomena; D002621:Chemistry; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008958:Models, Molecular; D008968:Molecular Conformation; D008982:Molybdenum; D009942:Organometallic Compounds; D010087:Oxides; D011522:Protons; D014574:Uronic Acids
D002247:Carbon Isotopes; D009942:Organometallic Compounds; D010087:Oxides; D011522:Protons; D014574:Uronic Acids; D008982:Molybdenum