Equilibrium study of Pd(dmen)(H2O)22+ complexes with bio-relevant ligands

Mohamed R. Shehata, Mohamed M. Shoukry* and Sara A. Mohamed

Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt.

Correspondence to: Mohamed M. Shoukry; e.mail: shoukrymm@hotmail.com


Summary: Pd(dmen)Cl2 complex, was synthesized and characterized, where dmen= N,N-dimethylethylenediamine. Stoichiometry and stability constants of the complexes formed between [Pd(dmen)(H2O)2]2+ and various biologically relevant ligands as amino acids, peptides and dicarboxylic acids are investigated at 25ºC and at constant 0.1 M ionic strength. Amino acids and dicarboxylic acids form 1:1 complexes. Peptides form two complex species Pd(dmen)L and Pd(dmen)(LH-1)  The concentration distribution diagrams of the various species formed are evaluated. 

Sabrein Ibrahim,
Oct 12, 2016, 1:00 PM