Reactions of peroxovanadates with amino acids and related compounds in aqueous solution
1 H and 51 V NMR spectroscopy has been used to study the reactions occurring between mono- and diperoxovanadate and a number of amino acids in aqueous solution. Concentration and pH studies were undertaken in order to establish product stoichiometry and proton requirements. The results revealed two distinct modes of interactions, dependent on whether the vanadate precursor contained one or two peroxide ligands. Monoperoxovanadate reacted with amino acids such as glycine or proline to give two types of bis(amino acid) products