| | 1 | Author
| B. Gyurcsik3, N. Buzásb, T. Gajdab, L. Nagyb, E. Kuzmannc, A. Vértesc, K. Burgerb | Requires cookie* | | | Title
| The Stability and Structure of Complex Species Formed in Equilibrium Reactions of Diethyltin(IV) with N-D-Gluconylamino Acids in Aqueous Solution  | | | | Abstract
| Complex formation equilibria of diethyltin(IV) with five TV-D-gluconylamino acids in aque ous solution (I = 0.1 M, NaC104) were studied and the stabilities of the species were deter mined by potentiometric titrations. Diethyltin(IV) complexes of a-amino acid derivatives are water-soluble in the physiological pH range, while in the presence of 7V-D-gluconyl-/?-alanine a precipitate is formed, which dissolves with increasing pH. 13C NM R measurements showed that in the /V-D-gluconyl-a-amino acid complexes the ligand is coordinated through its depro-tonated carboxylate oxygen, amide nitrogen and C(2)-hydroxy group, while for the soluble /V-D-gluconyl-/?-alanine complex the ligand is coordinated via the deprotonated carboxylate and C(3)-, C(4)-, C(5)-hydroxy groups. Mössbauer measurements reflected the geometry of the complexes formed. | | | |
Reference
| Z. Naturforsch. 50b, 515—523 (1995); received September 28 1994 | | | |
Published
| 1995 | | | |
Keywords
| Diethyltin(IV), /V-D-Gluconylamino Acid Complexes, Potentiometry, Mössbauer Spectra, NM R Spectra | | | |
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| default:Reihe_B/50/ZNB-1995-50b-0515.pdf | | | | Identifier
| ZNB-1995-50b-0515 | | | | Volume
| 50 | |
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