| | 1 | Author
| E. Rre, P.A M W Illiam | Requires cookie* | | | Title
| Interaction of the Vanadyl(IV) Cation with L-Ascorbic Acid and Related Systems  | | | | Abstract
| The interaction of V 0 2+ with L-ascorbic acid and dehydroascorbic acid was investigated by electronic spectroscopy in solution at different pH values. In the case of ascorbic acid, two different solid complexes containing one or two m onodeprotonated ascorbate ligands could be isolated and characterized. With dehydroascorbic acid, interaction begins at pH = 4 but at higher pH values the ligand is hydrolysed irreversibly, generating 2,3-diketogulonic acid. A solid complex containing this ligand could be precipitated at pH = 7. Its spectroscopic behavior confirms the interaction of the cation with an enolised form of the acid. | | | |
Reference
| Z. Naturforsch. 53b, 256—262 (1998); received O ctober 24 1997 | | | |
Published
| 1998 | | | |
Keywords
| Vanadyl(IV), Ascorbic Acid, Oxidation Products, Solution Interactions, Solid Complexes | | | |
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| default:Reihe_B/53/ZNB-1998-53b-0256.pdf | | | | Identifier
| ZNB-1998-53b-0256 | | | | Volume
| 53 | |
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