ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

The Complexation of Palladium(II) by Chloroacetate

P. Lubal, T. Godula, and J. Havel

Department of Analytical Chemistry, Faculty of Science, Masaryk University, CZ-611 37 Brno

Abstract: The complexation of palladium(II) by chloroacetate was studied by spectrophotometry in 1.00 M-(Na, H)ClO₄ at (25.0 +/- 0.2)°C. The experimental data were treated numerically by OPIUM program. The stability constant log β_PdL = 3.30₉ +/- 0.01₁ and spectra of individual species were calculated. The calculated stability constant is in good agreement with the value predicted by LFER approach (3.4₈ +/- 0.1₃). The thermodynamic parameters of complexation reaction, ∆H = (-10.7 +/- 0.7) kJ mol^-1 and ∆S = (-26_.7 +/- 42_.1) J K^-1 mol^-1, were also estimated by weighted linear least-squaxes procedure from the dependence of stability constant on temperature in the region 25-44°C.

Full paper in Portable Document Format: 553a157.pdf

Chemical Papers 55 (3) 157–161 (2001)