Preparation and Spectral Characterization of Some Novel Heterocyclic ligands Derivative from 2,4,6-tri oxo tetra hydro pyrimidine and their complexes with Pd(II)

Abstract

Abstract The Novel Heterocyclic ligands N-phenyl-4-{[(2,4,6-trioxotetrahydro pyrimidin-5(2H)ylidene)methyl]amino}benzene sulfonamide (L1) and 5-{[(3-hydroxy phenyl)amino]methylene}pyrimidine-2,4,6(1H,3H,5H)-trione (L2) were prepared to give the final poly dentate Heterocyclic with different donor atom system. All the synthesized ligands were characterized using 1H,13CNMR, Mass Spectra, C.H.N. microanalysis and studied by FTIR, UV.-Vis. techniques. with TLC technique for each steps of prepare reactions and melting points. New complexes of the general formulae [Pd (L1)2] and [Pd (L2)2], have been isolated. The complexes were characterized by elemental analyses, conductivity measurements, magnetic susceptibilities and spectroscopic (IR, 1H NMR and UV-Vis ) studies and melting points. All the data are discussed in terms of the nature of the bonding and the possible structural types. All preparation of complexes of Pd (II) ion were deduced according to the molar ratio (2:1) (L:M) depending on the Micro elemental Analysis (C.H.N.S). The Ligands behaves as a Didentate ligand in the monomeric complexes. According to the results obtained, Square Plainer structure suggested for the prepared complexes.