Nucleophilic Displacement of Halides from Dihalogenoplatinum(II) Complexes containing a Chelating Thioether. Kinetics and Equilibria

DOI: 10.1039/DT9940000169

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 169 - 174 (1994)

Update date:2022-08-02

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Authors:

Pitteri, Bruno

Marangoni, Giampaolo

Cattalini, Lucio

Canovese, Luciano

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Article abstract of DOI:10.1039/DT9940000169

Kinetic and equilibrium measurements on the displacement of halides from the substrates (X, Y = Cl, Cl; Cl, Br; Br, Br; Br, I; I, I; Cl, I) with the nucleophiles Cl(1-), Br(1-) and I(1-) have been carried out in methanol at 25 deg C, I = 0.5 mol dm³ (LiClO4).The results are discussed in terms of the relative stability of the planar ground and five-co-ordinate transition states, and the lability and kinetic cis effects of co-ordinated halides are compared.All substrates appear to be characterized by a sort of stereoelectronic hindrance leading to retardation effects, mainly in the second-order substitution pathway.

Full text of DOI:10.1039/DT9940000169

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