Synthesis and Studies of Some Bivalent Palladium Chelates of Phenyl-Hydrazodibenzoylmethane (Phdbm); 2-Methyl-; 3-Methyl; and 4-Methyl-Phenylhydrazodibenzoylmethane (2-Me-; 3Me; and 4-Me-PhDBM)

Gamal H. Tammam*, Ibrahim S. Alnaimi** and Atef A. T. Ramadan

¹Chemistry Department Faculty of Science, Qatar University, Arabian Gulf

²Faculty of Education, Cairo University, Cairo, Egypt

³Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt

ABSTRACT:

The synthesis, acid-base equilibria and palladium-ion chelating tendencies of PHDBM 2~Me~, 3-Me, and 4-Me-PHDBM are reported. From potentiometric equilibrium measurements of hydrogen-ion concentration at 30°C and ionic strenght 0.10M (KNO3), in 75% dioxen-water medium, the values of the stability constants of PHDBM, 2-Me, 3-Me-, and 4-Me-PHDBM complexes with palladium nitrate have been evaluated. Probable structures of palladium chleates are inferred from the electronic absorption spectra and infrared examination of the solid palladium complexes. The use of the ligands as analytical reagents for the spectrophotometer determination of palladium ions is discussed.

KEYWORDS:

Bivalent Palladium; Chelates; Phenyl-Hydrazodibenzoylmethane (Phdbm); 2-Methyl-; 3-Methyl

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Copy the following to cite this article: Tammam G. H, Alnaimi I. S, Ramadan A. A. T. Synthesis and Studies of Some Bivalent Palladium Chelates of Phenyl-Hydrazodibenzoylmethane (Phdbm); 2-Methyl-; 3-Methyl; and 4-Methyl-Phenylhydrazodibenzoylmethane (2-Me-; 3Me; and 4-Me-PhDBM). Orient J Chem 1988;4(1).

Copy the following to cite this URL: Tammam G. H, Alnaimi I. S, Ramadan A. A. T. Synthesis and Studies of Some Bivalent Palladium Chelates of Phenyl-Hydrazodibenzoylmethane (Phdbm); 2-Methyl-; 3-Methyl; and 4-Methyl-Phenylhydrazodibenzoylmethane (2-Me-; 3Me; and 4-Me-PhDBM). Orient J Chem 1988;4(1). Available from: http://www.orientjchem.org/?p=41734