Article
Stability constants of mixed ligand complexes of vanadium(III) with 8-hydroxyquinoline and the amino acids glycine, proline, α-alanine and β-alanine
Autor
Sanoja, William
Martínez, José Daniel
Araujo, Mary Lorena
Brito, Felipe
Hernández, Lino
Del Carpio, Edgar
Lubes, Vito
Institución
Resumen
In thiswork we report the results of the investigation on the formation of ternary complexes in vanadium(III)–8-
hydroxyquinoline (H8HQ) and amino acid glycine (HGly, HL), proline (HPro, HL), αalanine (HαAla, HL) and
βalanine (HβAla, HL) systems. The analysis of the potentiometric data with the least-squares program
LETAGROP indicates the formation of the complexes [V(8HQ)(HL)]2+ and V(8HQ)(L)(OH) in all the systems
studied. The species distribution diagrams were briefly discussed.