LUBAL, Přemysl and Lars-Ivar ELDING. Kinetics and equilibria for complex formation between palladium(II) and chloroacetate. Journal of Solution CHemistry. NEW YORK, USA: SPRINGER/PLENUM PUBLISHERS, 2006, vol. 35, No 5, p. 769-781, 14 pp. ISSN 0095-9782.
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Basic information
Original name Kinetics and equilibria for complex formation between palladium(II) and chloroacetate
Name in Czech Studium kinetiky a rovnováh tvorby komplexů mezi Pd(II) a chloroacetátem
Authors LUBAL, Přemysl (203 Czech Republic, guarantor) and Lars-Ivar ELDING (752 Sweden).
Edition Journal of Solution CHemistry, NEW YORK, USA, SPRINGER/PLENUM PUBLISHERS, 2006, 0095-9782.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10406 Analytical chemistry
Country of publisher Netherlands
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 1.026
RIV identification code RIV/00216224:14310/06:00031856
Organization unit Faculty of Science
UT WoS 000239310700009
Keywords in English palladium(II); chloroacetic acid; equilibrium; kinetics; thermodynamic and activation parameters; LFER
Tags chloroacetic acid, equilibrium, kinetics, LFER, palladium(II), thermodynamic and activation parameters
Tags International impact, Reviewed
Changed by Changed by: prof. RNDr. Přemysl Lubal, Ph.D., učo 1271. Changed: 8/4/2010 19:53.
Abstract
Kinetics and equilibria for the formation of a 1:1 complex between palladium(II) and chloroacetate were studied by spectrophotometric measurements in 1.00 mol.dm-3 HClO4 at 298.2 K. The equilibrium constant, K, of the reaction Pd2+ + HL <=> PdL+ + H+ was determined from multi-wavelength absorbance measurements of equilibrated solutions at variable temperatures and spectra of individual species were calculated. Variable-temperature kinetic measurements gave rate constants for the forward and backward reactions at 298.2 K and ionic strength 1.00 mol. dm-3. From the kinetics of the forward and reverse processes, log(10) K = 0.346 +/- 0.007, Delta H_0 = -7.9 +/- 0.9 kJ.mol-1 and Delta S_0 = - 19.8 +/- 3.0 J.K-1.mol-1 were derived, and these values are in good agreement with the results of the equilibrium measurements. The Specific Ion Interaction Theory was employed for determination of thermodynamic equilibrium constants for the protonation of chloroacetate.
Abstract (in Czech)
Kinetika a rovnováhy pro vznik 1:1 komplexu mezi Pd(II) a chloroacetátem byly studovány pomocí spektrofotometrie v 1,00 mol.dm-3 HClO4 při 298.2 K. Rovnovážná konstanta, K, reakce Pd2+ + HL <=> PdL+ + H+ byla stanovena z měření absorbance při různých vlnových délkách a teplotách a jednotlivé spektrální profily byly vypočteny. Kinetická měření při různých teplotách poskytly hodnoty rychlostních konstant pro obě reakce při 298.2 K a iontové síle 1.00 mol.dm-3. Z kinetiky obou reakcí, log(10) K = 0.346 +/- 0.007, Delta H_0 = -7.9 +/- 0.9 kJ.mol-1 a Delta S_0 = - 19.8 +/- 3.0 J.K-1.mol-1 byly vypočteny, a tyto hodnoty jsou v dobré shodě s výsledky rovnovážných měření.
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