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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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The article was received on 19 Dec 2018, accepted on 18 Jan 2019 and first published on 21 Jan 2019

Article type: Communication
DOI: 10.1039/C8DT04995E
Dalton Trans., 2019,48, 3547-3550

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    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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