Platinum complexes with unsaturated amines. Part III. The thermodynamics of formation of complexes (CH₂:CH·[CH₂]_n·LR₂R′)⁺PtCl₃^–(L = N, P, and As; n= 1 and 2)

1 January 1967

journal article
research article
Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A

p. 324-328
https://doi.org/10.1039/j19670000324

Abstract

Stability constants and entropies and enthalpies of formation of platinum(II)–olefin complexes of the type (CH₂:CH·[CH₂]_n·LR₂R′)⁺PtCl₃ ^–(L = N, P, and As; n= 1 and 2) have been obtained in aqueous solution, by a spectrophotometric method. It is shown that these olefins have affinities for platinum(II) comparable with those of the heavier halide ions. Analysis of the enthalpy and entropy changes indicates that the π-acceptor capacity of the olefin is more important than its σ-donor capacity for the formation of stable platinum–olefin bonds.

Keywords

THERMODYNAMICS

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Platinum complexes with unsaturated amines. Part III. The thermodynamics of formation of complexes (CH2:CH·[CH2]n·LR2R′)+PtCl3–(L = N, P, and As; n= 1 and 2)

Abstract

Keywords

Platinum complexes with unsaturated amines. Part III. The thermodynamics of formation of complexes (CH₂:CH·[CH₂]_n·LR₂R′)⁺PtCl₃^–(L = N, P, and As; n= 1 and 2)