Synthesis, characterization and X-ray structural determination of palladium(0)–olefin complexes containing pyridin-thioethers as ancillary ligands. Equilibria and rates of olefin and ligand exchange

The synthesis of Pd(0)–olefin complexes with pyridin-thioether ligands R′NSR is reported. X-ray structure determinations of selected species are described. The dynamic behavior was studied by variable-temperature 1H-NMR spectrometry. Equilibrium constants for olefin and chelate ligand exchange were...

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Bibliographic Details
Published in:Journal of organometallic chemistry 2000-04, Vol.601 (1), p.1-15
Main Authors: Canovese, Luciano, Visentin, Fabiano, Chessa, Gavino, Uguagliati, Paolo, Dolmella, Alessandro
Format: Article
Language:English
Subjects:
Equilibria
Olefin and ligand exchange
Palladium–olefin complexes
Thioethers
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Summary:The synthesis of Pd(0)–olefin complexes with pyridin-thioether ligands R′NSR is reported. X-ray structure determinations of selected species are described. The dynamic behavior was studied by variable-temperature 1H-NMR spectrometry. Equilibrium constants for olefin and chelate ligand exchange were determined by UV–vis spectrophotometry in chloroform at 25°C. The following metal–olefin stability order was observed: tetramethylethylenetetracarboxylate (tmetc)≈naphthoquinone (nq)
ISSN:0022-328X
1872-8561
DOI:10.1016/S0022-328X(00)00014-0