Synthesis and spectral study of uranyl (VI)‎ polydentate amide complexes

Abstract EN

Four new complexes of polydentate amide ligands with Uranyl (VI) have been prepared by the reaction of the hot ethanolic solution of N,N‾-bis- (3-carboxy-1-oxoprop-2-enyl)-1, 2-ethylenediamine (L1), N,N‾-bis- (3-carboxy-1-oxoprop-2-enyl) hydra zine (L2), N,N‾-bis- (3-carboxy-1-oxoprop-2-enyl)-1, 2-phenylenediamine (L3) and N,N‾-bis- (3-carboxy-1-oxopropanyl) hydrazine (L4) with aqueous solution of Uranyl acetate.

The four new complexes were studied by elemental analysis, ultra violet – visible spectra and infra red spectroscopy.

Vibrational spectra indicate coordination of amide and carboxalate oxygen’s of the ligands along with one water molecule giving a UO2 (VI) complexes with heptacoordination.

Electronic spectra support the coordination of ligands with uranyl ions to form the UO2 (VI) complexes.