Complexation of ampicillin with Zn and Cd cations in potassium nitrate solutions

Complexation of ampicillin with Zn and Cd cations in potassium nitrate solutions Constants of formation of monoligand Zn(II) and Cd(II) complexes with ampicillin anion at 20°C with KNO3 background electrolyte (0.1, 0.4, 0.7, and 1.0 mol/l) were determined by potentiometric titration. Concentration constants were extrapolated to zero ionic strength according to the Hückel equation and thermodynamic formation constants logβ° (CdAmp+) and logβ° (ZnAmp+) (3.43 and 3.80, respectively) were obtained. The possible structures of complexes were discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Coordination Chemistry Springer Journals

Complexation of ampicillin with Zn and Cd cations in potassium nitrate solutions

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2006 by Pleiades Publishing, Inc.
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry
ISSN
1070-3284
eISSN
1608-3318
D.O.I.
10.1134/S1070328406070025
Publisher site
See Article on Publisher Site

Abstract

Constants of formation of monoligand Zn(II) and Cd(II) complexes with ampicillin anion at 20°C with KNO3 background electrolyte (0.1, 0.4, 0.7, and 1.0 mol/l) were determined by potentiometric titration. Concentration constants were extrapolated to zero ionic strength according to the Hückel equation and thermodynamic formation constants logβ° (CdAmp+) and logβ° (ZnAmp+) (3.43 and 3.80, respectively) were obtained. The possible structures of complexes were discussed.

Journal

Russian Journal of Coordination ChemistrySpringer Journals

Published: Jul 17, 2006

References

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