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Issue 11, 2019
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Oxidative addition of arsenic halides to platinum(0)

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Reaction of AsCl3 with Pt(0) complexes [Pt(PCy3)2], [Pt(PCy3)(IMes)] and [Pt(IMes)2] (IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene) resulted in oxidative addition of As–Cl bonds at the Pt centres to form complexes of the form trans-[PtCl(AsCl2)L2]. Two of these compounds were characterised by X-ray diffraction, making them the first structurally characterised examples of AsX2 ligands (X = halogen). AsBr3 also underwent oxidative addition to [Pt(PCy3)2], forming trans-[PtBr(AsBr2)(PCy3)2] in situ, as judged by 31P NMR spectroscopy. This reaction was unselective, yielding several products, of which a Pt3As2 cluster could be identified by single-crystal X-ray diffraction.

Graphical abstract: Oxidative addition of arsenic halides to platinum(0)

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Article information

19 Dec 2018
18 Jan 2019
First published
21 Jan 2019

Dalton Trans., 2019,48, 3547-3550
Article type

Oxidative addition of arsenic halides to platinum(0)

J. H. Muessig, T. E. Stennett, U. Schmidt, R. D. Dewhurst, L. Mailänder and H. Braunschweig, Dalton Trans., 2019, 48, 3547
DOI: 10.1039/C8DT04995E

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