NMR Studies on the Isomerization of Vanadium(V)-Propylenediaminetetraacetate Complex in Solution

Abstract

In this paper we have determined the thermodynamic parameters for the isomerization between the α-cis and the β-cis isomers in vanadium(V)-propylenediaminetetraacetate complex in water by 51 V NMR spectroscopy. In addition, the effects of organic solvents (methanol, formamide and dimethylsulfoxide) and inorganic salts (NaCl, NaClO 4 and NH 4 Cl) on the isomerization in solution have been investigated.