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Equilibrium and kinetic investigation of the interaction of model palladium(II) complex with biorelevant ligands

✍ Scribed by Mohamed M. Shoukry; Azza A. Shoukry; Perihan A. Khalf Alla; Safaa S. Hassan

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
316 KB
Volume
42
Category
Article
ISSN
0538-8066

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✦ Synopsis

Abstract

Pd(DME)Cl~2~ complex was synthesized and characterized, where DME is 2‐{[2‐(dimethylamino)ethyl]‐methylamino}ethanol. Stoichiometry and stability constants of the complexes formed between various biologically relevant ligands (amino acids, peptides, DNA constituents, and dicarboxylic acids) and [Pd(DME)(H~2~O)~2~]^2+^ are investigated at 25°C and at constant 0.1 M ionic strength. The effect of dielectric constant of the medium on the stability constant of Pd(DME)‐CBDCA complex, where CBDCA is cyclobutanedicarboxylate, is also reported. The concentration distribution diagrams of the various species formed are evaluated. The kinetics of base hydrolysis of amino acid esters coordinated to Pd(DME)^2+^ complex is investigated. The effect of the temperature on the kinetics of base hydrolysis of glycine methyl ester complex is studied. © 2010 Wiley Periodicals, Inc. Int J Chem Kinet 42: 608–618, 2010

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