Synthesis and characterization of N-benzoyl-DL-α-valinato complexes of palladium(II), platinum(II). Crystal structure of a complex with deprotonated nitrogen coordinating to the palladium(11)

Article abstract of DOI:10.1016/S0277-5387(97)00153-8

Reactions of MLCl₂ (M = Pd(II), Pt(II) ; L = bipy, phen) with Bzval H₂ (Bzval H₂ = N-benzoylDL-α-valine) in aqueous solution at pH ～9 gave three complexes [Pd(bipy)(Bzval-N,O)] (1), [Pd(phen)(Bzval-N, O)] · H₂O(2) and [Pt(bipy)(Bzval-N,O)] -H₂O(3). All of these complexes were characterized by elemental analysis and IR spectra. The structure of 1 has been determined by X-ray diffraction analysis. In all complexes an N-benzoyl-DL-α-valinate dianion coordinates to the metal ion through a deprotonated amide nitrogen and a carboxylic oxygen. There is some intramolecular interaction between phenyl ring and bipy in the complex.