Interaction of Dioxovanadium (V) ion with L-alanine at Different Ionic Strengths

Authors

  • Mohammad Hossein Fekri Ayatollah Alozma Boroujerdi University, Boroujerd
  • F. Gharib Shahid Beheshti University, Tehran, Evin
  • M. Darvishpour Razi University, Kermanshah

DOI:

https://doi.org/10.24297/jac.v5i1.935

Keywords:

Stability constants, Dioxivanadium(V), Alanine, Ionic strength, Fitting method.

Abstract

The formation constants of species formed in the system H+ + alanine and VO2+ +alanine have been determined in aqueous solution for 1.0<pH<7.0 and at different ionic strengths ranging from 0.1 to 1.0 mol dm-3 NaClO4, using a combination of potentiometric and spectrophotometric techniques.The compositions of the formd complexes and their stability constants were determined by curve fitting method and it was shown that dioxivanadium(V) forms two mononuclear 1:1 and 1:2 species with alanineof type VO2L and VO2L2-.The porotonation constant of the amino group of alanine has been determined using potentiometric techniques and calculated using a computer program wich employ a least-squares method. The dependence of the porotonation of alanine and the stability constants of the species on ionic strength are described by a deby-huckel type equation.

Downloads

Download data is not yet available.

Author Biographies

Mohammad Hossein Fekri, Ayatollah Alozma Boroujerdi University, Boroujerd

Department of Chemistry

F. Gharib, Shahid Beheshti University, Tehran, Evin

Chemistry Department, Faculty of Sciences

M. Darvishpour, Razi University, Kermanshah

Department of Chemistry

Downloads

Published

2009-04-29

How to Cite

Fekri, M. H., Gharib, F., & Darvishpour, M. (2009). Interaction of Dioxovanadium (V) ion with L-alanine at Different Ionic Strengths. JOURNAL OF ADVANCES IN CHEMISTRY, 5(1), 570–574. https://doi.org/10.24297/jac.v5i1.935

Issue

Section

Articles