Bis-glycinato complexes of palladium(II): Synthesis, structural determination, and hydrogen bonding interactions

摘要

Palladium(II) acetate and palladium(II) chloride react with glycine and glycine derivatives in acetone/water to yield square planar bis-chelated palladium amino acid complexes. Glycine, N-methylglycine and N,N-dimethylglycine all adopt the trans configuration when prepared from palladium(II) acetate, whereas glycine adopts a cis configuration when prepared from palladium(II) chloride. The crystal structures of all four complexes were obtained. The extended lattice structures arise from N-H center dot center dot O or O center dot center dot(HOH)center dot center dot O hydrogen bonding. Nuclear magnetic resonance, infrared, high resolution mass spectroscopy, and UV-Vis spectroscopic data are evaluated. (C) 2014 Elsevier B.V. All rights reserved.