Synthesis and Characterization of Palladium Complexes of Some N,N,N’,N’-Tetrakis(2-Pyridylmethyl)Alkanediamine Ligands
Synthesis and Characterization of Palladium Complexes of Some N,N,N’,N’-Tetrakis(2-Pyridylmethyl)Alkanediamine Ligands

Summary/Abstract: The syntheses and characterization of complexes formed from the reaction of bis(acetonitrile)palladium(II) chloride, (CH3CN)2PdCl2 , with nitrogen-based ligands of the type N,N,N´,N´-tetrakis(2-pyridylmethyl)alkanediamine {alkane= butane (L1), hexane (L2) and octane (L3)} were investigated. Ligand to metal (L:M) ratios of 1:1 and 1:2 were employed in the preparation of the palladium complexes. L1 reacted with (CH3CN)2PdCl2 in methanol and at a ligand to metal ratio of 1:1 to yield a cream white complex (A). Each of the three ligands (L1, L2, L3) reacted with (CH3CN)2PdCl2 at a ligand to metal ratio of 1:2 in HCl medium for 24 hours yielding light yellow powders B, C, and D, respectively. Results from IR, 1H-NMR and Mass spectroscopic techniques combined with elemental analyses suggest a mononuclear complex for A and dinuclear complexes for B, C, and D.

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