Abstract
In the presence of excess SnCl2 or SnBr2, 119Sn NMR spectroscopy shows that the complex anions [Pt(SnCl3)5]3− or [Pt(SnBr3)5]3− are exclusively extracted into chloroform containing methyltrioctylammonium chloride or bromide. Significantly, in the presence of even small amounts of chloride ion, halogen scrambling of the [Pt(SnBr3)5]3− complex anion occurs, resulting in a distribution of the [Pt(SnClxBry)5]3− species, all possible isomers of which can be observed in this solvent system at room temperature.
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