Syntheses, characterization and catalytic activity of Mannich aminomethylation products of bis(glycinato)metal(II) complexes

Mannich aminomethylation products have been prepared from one-pot template condensation of bis(glycinato)metal(II) complexes, M(gly)2, with formaldehyde and nitromethane. The synthesized compounds were characterized by suitable spectroscopic and analytical methods such as UV–Vis, infrared spectroscopy, elemental analysis, FAB mass, ESR, cyclic voltammetry, TGA and NMR. One of the synthesized products has been used as catalyst in the hydrogen peroxide induced degradation of pyrocatechol violet (PCV) dye.

Reactions of chelated glycine complexes with formaldehyde and nitromethane yielded different Mannich aminomethylation products under acidic and alkaline conditions. The synthesized bridged complexes have been characterized by suitable spectroscopic and analytical techniques. One of the synthesized products, tested for its catalytic activity, has been found to be effective in the hydrogen peroxide induced degradation of pyrocatechol violet dye.Figure optionsDownload as PowerPoint slide