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Rates and Mechanisms for Halide Anation Reactions of Platinum(IV) Complexes

Elding, Lars Ivar LU and Gustafson, Lena (1977) In Inorganica Chimica Acta 24(3). p.239-246
Abstract (Swedish)
The bromide anation of tr-PtCl4BrH2O− has been studied at 25 °C and the chloride anations of tr-PtCl4BrH2O− and PtBr5H2O− at 50 °C. These reactions proceed via halide assisted mechanisms, compatible with the experimental rate laws determined. The bromide anation of tr-PtBr4CIH2O− studied at 50 °C gives PtBr5Cl2− via a bromide assisted path and PtBr62− via an REOA-path. The observed rate law is determined. PtBr5Cl2− reacts subsequently with bromide to form PtBr62− via a rate-determining (bromide assisted or REOA) formation of an intermediate aqua complex according to the mechanism given. The observed rate law at 50 °C is determined. All reactions have been studied in a 0.50 M perchloric acid medium.
A general survey of... (More)
The bromide anation of tr-PtCl4BrH2O− has been studied at 25 °C and the chloride anations of tr-PtCl4BrH2O− and PtBr5H2O− at 50 °C. These reactions proceed via halide assisted mechanisms, compatible with the experimental rate laws determined. The bromide anation of tr-PtBr4CIH2O− studied at 50 °C gives PtBr5Cl2− via a bromide assisted path and PtBr62− via an REOA-path. The observed rate law is determined. PtBr5Cl2− reacts subsequently with bromide to form PtBr62− via a rate-determining (bromide assisted or REOA) formation of an intermediate aqua complex according to the mechanism given. The observed rate law at 50 °C is determined. All reactions have been studied in a 0.50 M perchloric acid medium.
A general survey of reactivity correlations and mechanisms for platinum(IV) anation reactions is given. Effects of reductants, bridging and entering ligands, and of the four non-labile ligands in the plane around the platinum atom are quantitatively compared. (Less)
Abstract
The bromide anation of tr-PtCl4BrH2O− has been studied at 25 °C and the chloride anations of tr-PtCl4BrH2O− and PtBr5H2O− at 50 °C. These reactions proceed via halide assisted mechanisms, compatible with the experimental rate laws determined. The bromide anation of tr-PtBr4CIH2O− studied at 50 °C gives PtBr5Cl2− via a bromide assisted path and PtBr62− via an REOA-path. The observed rate law is determined. PtBr5Cl2− reacts subsequently with bromide to form PtBr62− via a rate-determining (bromide assisted or REOA) formation of an intermediate aqua complex according to the mechanism given. The observed rate law at 50 °C is determined. All reactions have been studied in a 0.50 M perchloric acid medium.
A general survey of... (More)
The bromide anation of tr-PtCl4BrH2O− has been studied at 25 °C and the chloride anations of tr-PtCl4BrH2O− and PtBr5H2O− at 50 °C. These reactions proceed via halide assisted mechanisms, compatible with the experimental rate laws determined. The bromide anation of tr-PtBr4CIH2O− studied at 50 °C gives PtBr5Cl2− via a bromide assisted path and PtBr62− via an REOA-path. The observed rate law is determined. PtBr5Cl2− reacts subsequently with bromide to form PtBr62− via a rate-determining (bromide assisted or REOA) formation of an intermediate aqua complex according to the mechanism given. The observed rate law at 50 °C is determined. All reactions have been studied in a 0.50 M perchloric acid medium.
A general survey of reactivity correlations and mechanisms for platinum(IV) anation reactions is given. Effects of reductants, bridging and entering ligands, and of the four non-labile ligands in the plane around the platinum atom are quantitatively compared. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Inorganica Chimica Acta
volume
24
issue
3
pages
8 pages
publisher
Elsevier
external identifiers
  • scopus:4243951955
ISSN
0020-1693
DOI
10.1016/S0020-1693(00)93882-9
language
English
LU publication?
yes
id
9ff3ab53-881a-4010-a071-0869f175064e
date added to LUP
2017-02-19 14:46:36
date last changed
2017-07-23 05:24:54
@article{9ff3ab53-881a-4010-a071-0869f175064e,
  abstract     = {The bromide anation of tr-PtCl4BrH2O− has been studied at 25 °C and the chloride anations of tr-PtCl4BrH2O− and PtBr5H2O− at 50 °C. These reactions proceed via halide assisted mechanisms, compatible with the experimental rate laws determined. The bromide anation of tr-PtBr4CIH2O− studied at 50 °C gives PtBr5Cl2− via a bromide assisted path and PtBr62− via an REOA-path. The observed rate law is determined.  PtBr5Cl2− reacts subsequently with bromide to form PtBr62− via a rate-determining (bromide assisted or REOA) formation of an intermediate aqua complex according to the mechanism given. The observed rate law at 50 °C is determined. All reactions have been studied in a 0.50 M perchloric acid medium.<br/>       A general survey of reactivity correlations and mechanisms for platinum(IV) anation reactions is given. Effects of reductants, bridging and entering ligands, and of the four non-labile ligands in the plane around the platinum atom are quantitatively compared.},
  author       = {Elding, Lars Ivar and Gustafson, Lena},
  issn         = {0020-1693},
  language     = {eng},
  number       = {3},
  pages        = {239--246},
  publisher    = {Elsevier},
  series       = {Inorganica Chimica Acta},
  title        = {Rates and Mechanisms for Halide Anation Reactions of Platinum(IV) Complexes},
  url          = {http://dx.doi.org/10.1016/S0020-1693(00)93882-9},
  volume       = {24},
  year         = {1977},
}