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Issue 17, 2001
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Gold(I) organosulfinate and organosulfonate complexes

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(Phosphine)gold(I) organosulfonates and organosulfinates (R3P)Au–OS(O)2R′ (A) and (R3P)Au–S(O)2R′ (B), respectively, are active catalysts for the addition of alcohols to alkynes. A series of compounds of type A (R = Ph and Me, R′ = p-Tol; R = Ph, R′ = p-Py; R = Ph and Me, R′ = Et) and type B (R = Ph, R′ = p-Tol; R = Ph and Me, R′ = Me) were prepared and characterized by analytical and spectroscopic data. The crystal structure of [p-TolS(O)2O–Au(PPh3)]·CH2Cl2 was determined by single crystal X-ray diffraction. The molecules are aggregated into pairs with O-bonded gold atoms and short Au⋯Au contacts [3.1770(3) Å]. By contrast, crystals of “p-TolS(O)O–Au(PPh3)” contain intimately aggregated ion pairs of the homoleptic components [(Ph3P)2Au]+[{p-TolS(O)2}2Au] with a short Au⋯Au contact [2.9249(2) Å] and a strongly bent P–Au–P axis [156.66(4)°]. The sulfinate ligands are both S-bonded to the gold atom. Analogous p-tolylsulfinate complexes were also prepared with the isocyanide ligands tBuNC and 2,6-Me2C6H3NC. Their spectroscopic data indicate ionic solid state structures with homoleptic cations and anions.

Graphical abstract: Gold(I) organosulfinate and organosulfonate complexes

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The article was received on 04 May 2001, accepted on 25 Jun 2001 and first published on 13 Aug 2001

Article type: Paper
DOI: 10.1039/B104001B
Citation: J. Chem. Soc., Dalton Trans., 2001,0, 2482-2486

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    Gold(I) organosulfinate and organosulfonate complexes

    P. Römbke, A. Schier and H. Schmidbaur, J. Chem. Soc., Dalton Trans., 2001, 0, 2482
    DOI: 10.1039/B104001B

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