Palladium(II) Halide Complexes II. Acid Hydrolysis and Halide Anations of Palladium(II) Chloro and Bromo Aqua Complexes
(1972) In Inorganica Chimica Acta 6. p.683-688- Abstract
- The rate constants for the chloride and bromide anations of Pd(H2O)42+, the chloride anations of PdCl3H2O−, the bromide anation of PdBr3H2O− and the acid hydrolysis of PdCl(H2O)3+, PdBr(H2O)3+, PdCl42−, and PdBr42− have been determined at 15, 25 and 35 °C using a stopped-flow technique. The ionic strength was 1.00 M and the supporting electrolyte perchloric acid. The obtained rate constants and the activation enthalpies and entropies are given. A comparison with the corresponding reactions for platinum(II) complexes indicates that the acid hydrolyses are 1×105 to 2×105 times faster and the halide anations 4×101 to 6×104 times faster for palladium. The increased rates of reaction are due to a decrease in activation enthalpies. The reactions... (More)
- The rate constants for the chloride and bromide anations of Pd(H2O)42+, the chloride anations of PdCl3H2O−, the bromide anation of PdBr3H2O− and the acid hydrolysis of PdCl(H2O)3+, PdBr(H2O)3+, PdCl42−, and PdBr42− have been determined at 15, 25 and 35 °C using a stopped-flow technique. The ionic strength was 1.00 M and the supporting electrolyte perchloric acid. The obtained rate constants and the activation enthalpies and entropies are given. A comparison with the corresponding reactions for platinum(II) complexes indicates that the acid hydrolyses are 1×105 to 2×105 times faster and the halide anations 4×101 to 6×104 times faster for palladium. The increased rates of reaction are due to a decrease in activation enthalpies. The reactions are typically square planar substitutions with respect to entering and leaving groups. The mechanism appears to be associative in nature. (Less)
- Abstract (Swedish)
- The rate constants for the chloride and bromide anations of Pd(H2O)42+, the chloride anations of PdCl3H2O−, the bromide anation of PdBr3H2O− and the acid hydrolysis of PdCl(H2O)3+, PdBr(H2O)3+, PdCl42−, and PdBr42− have been determined at 15, 25 and 35 °C using a stopped-flow technique. The ionic strength was 1.00 M and the supporting electrolyte perchloric acid. The obtained rate constants and the activation enthalpies and entropies are given. A comparison with the corresponding reactions for platinum(II) complexes indicates that the acid hydrolyses are 1×105 to 2×105 times faster and the halide anations 4×101 to 6×104 times faster for palladium. The increased rates of reaction are due to a decrease in activation enthalpies. The reactions... (More)
- The rate constants for the chloride and bromide anations of Pd(H2O)42+, the chloride anations of PdCl3H2O−, the bromide anation of PdBr3H2O− and the acid hydrolysis of PdCl(H2O)3+, PdBr(H2O)3+, PdCl42−, and PdBr42− have been determined at 15, 25 and 35 °C using a stopped-flow technique. The ionic strength was 1.00 M and the supporting electrolyte perchloric acid. The obtained rate constants and the activation enthalpies and entropies are given. A comparison with the corresponding reactions for platinum(II) complexes indicates that the acid hydrolyses are 1×105 to 2×105 times faster and the halide anations 4×101 to 6×104 times faster for palladium. The increased rates of reaction are due to a decrease in activation enthalpies. The reactions are typically square planar substitutions with respect to entering and leaving groups. The mechanism appears to be associative in nature. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/b69b853a-88e8-4839-a01c-c4340516fb76
- author
- Elding, Lars Ivar LU
- organization
- publishing date
- 1972
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Acid hydrolysis, Halide anation, Palladium(II) complexes, Stopped-flow kinetics, Activation parameters, Associative reactions
- in
- Inorganica Chimica Acta
- volume
- 6
- pages
- 7 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:0004373473
- ISSN
- 0020-1693
- DOI
- 10.1016/S0020-1693(00)91884-X
- language
- English
- LU publication?
- yes
- id
- b69b853a-88e8-4839-a01c-c4340516fb76
- date added to LUP
- 2017-02-19 19:14:54
- date last changed
- 2021-09-26 03:24:20
@article{b69b853a-88e8-4839-a01c-c4340516fb76, abstract = {{The rate constants for the chloride and bromide anations of Pd(H2O)42+, the chloride anations of PdCl3H2O−, the bromide anation of PdBr3H2O− and the acid hydrolysis of PdCl(H2O)3+, PdBr(H2O)3+, PdCl42−, and PdBr42− have been determined at 15, 25 and 35 °C using a stopped-flow technique. The ionic strength was 1.00 M and the supporting electrolyte perchloric acid. The obtained rate constants and the activation enthalpies and entropies are given. A comparison with the corresponding reactions for platinum(II) complexes indicates that the acid hydrolyses are 1×105 to 2×105 times faster and the halide anations 4×101 to 6×104 times faster for palladium. The increased rates of reaction are due to a decrease in activation enthalpies. The reactions are typically square planar substitutions with respect to entering and leaving groups. The mechanism appears to be associative in nature.}}, author = {{Elding, Lars Ivar}}, issn = {{0020-1693}}, keywords = {{Acid hydrolysis; Halide anation; Palladium(II) complexes; Stopped-flow kinetics; Activation parameters; Associative reactions}}, language = {{eng}}, pages = {{683--688}}, publisher = {{Elsevier}}, series = {{Inorganica Chimica Acta}}, title = {{Palladium(II) Halide Complexes II. Acid Hydrolysis and Halide Anations of Palladium(II) Chloro and Bromo Aqua Complexes}}, url = {{http://dx.doi.org/10.1016/S0020-1693(00)91884-X}}, doi = {{10.1016/S0020-1693(00)91884-X}}, volume = {{6}}, year = {{1972}}, }