1. Interaction of Dioxovanadium(V) with Alanine, Alanylalanine, and Alanylglycine
- Author
-
Farrokh Gharib and Mohammad Hossein Fekri
- Subjects
Alanine ,Crystallography ,Aqueous solution ,Stereochemistry ,Stability constants of complexes ,Chemistry ,Alanylalanine ,Potentiometric titration ,Biophysics ,Physical and Theoretical Chemistry ,Molecular Biology ,Biochemistry - Abstract
The stability constants of the systems dioxovanadium(V) with alanylalanine, alanylglycine, and alanine have been determined in aqueous solution in 0.8 ≤ pH ≤ 5 at 25°C and 0.1 mol-dm−3 (NaClO4), using a combination of potentiometric and spectrophotometric techniques. The compositions of the formed complexes were determined and it was shown that dioxovanadium(V) forms two mononuclear 1:1 and 1:2 species with alanine of the type VO2L and VO2L2−, and two mononuclear 1:1 complexes with alanylpeptides of the type VO2HL and VO2L−.
- Published
- 2003
- Full Text
- View/download PDF