Potentiometric and Spectroscopic Studies on the Ternary Complexes of Copper(II) and Palladium(II) with Peptides and Nucleobases
- 259 Downloads
The binary complexes of transition metal ions with dipeptides or nucleobases have already been well-characterized and the most important findings were rewieved by several authors [1, 2]. In case of oligopeptides the metal binding ability of the ligands depends on the the involvement of amide nitrogens and side chain residues in metal ion coordination. Copper(II) and palladium(II) were reported to be the most effective to induce deprotonation and coordination of amide nitrogens and, as a consequence, these metal ions form especially stable complexes with dipeptides.
KeywordsStability Constant Ternary Complex Binary Complex Nitrogen Donor Stability Order
Unable to display preview. Download preview PDF.
- 1.Sövagö, I. (1990) Coordination Chemistry of Peptides, in “Biocoordination Chemistry”, ed. Burger, K., Ellis Horwood, New YorkGoogle Scholar
- 2.Lönnberg, H. (1990) Proton and Metal Ion Interaction with Nucleic Acid Bases, in “Biocoordination Chemistry”, ed. Burger, K., Ellis Horwood, New YorkGoogle Scholar
- 5.Wienken, M., Zangrando, E., Randaccio, L., Menzer, S. and Lippert B. (1993) Structural and solution study on binary peptide and ternary peptide-nucleobase complexes of palladium(II), J. Chem. Soc. Dalton Trans., 3349–3357.Google Scholar
- 10.Sövagö, I. Kiss, A. and Lippert B. (1995) Spectroscopic and potentiometric studies on the ineraction of trans-[(MeNH2)2Pt(mcyt)2PdCl]NO3 with derivatives of amino acids, J. Chem. Soc. Dalton Trans., 489–494.Google Scholar
- 11.Sövagö, I., Kiss, A., Farkas, E., Sanna, D., Marras, P. and Micera, G. (1996) Potentiometric and spectroscopic studies on the ternary complexes of copper(II) with dipeptides and nucleobases, J. Inorg. Biochem., (in press).Google Scholar
- 13.Martin, R.B. and Mariam, Y.H. (1979) Interaction between metal ions and nucleic bases, nucleosides and nucleotides in solution, Metal Ions in Biological Systems, 9, 57–124.Google Scholar