Abstract
The compounds [Au3(S2CNMe2)3{μ 3-(PPh2)3CH]} (1) and [Au3(S2CNMe2)(μ-S2CNMe2){μ 3-(PPh2)3CH}]ClO4 (2) are obtained by reaction of [Au3Cl3{μ 3-(PPh2)3CH}] with three equivalents of sodium dimethyldithiocarbamate or two equivalents of the same reagent in the presence of excess NaClO4. Reaction of 2 with the group 11 metal complexes [AuCl(tht)], CuCl or [Au(C6F5)(tht)] takes place with displacement of [M(S2CNMe2)]n (M=Cu, Au) and formation of the new complexes [Au3X(μ-S2CNMe2){μ 3-(PPh2)3CH}]ClO4 (X=Cl (3), X=C6F5 (4)); further reaction of 3 with [Ag(OClO3)(tht)] (tht=tetrahydrothiophene) affords the dicationic species [Au3(μ-S2CNMe2){μ 3-(PPh2)3CH}(tht)](ClO4)2 (5). Treatment of [Au3Cl3{μ 3-(PPh2)3CH}] with one equivalent of NaS2CNMe2 allows the substitution of only one chlorine atom, giving rise to the complex [Au3Cl2(S2CNMe2){μ 3-(PPh2)3CH}] (6), in which the dithiocarbamate ligand acts as monodentate rather than bidentate bridging as observed in compounds 3–5. The crystal structures of complexes 1 and 2 have been established by X-ray diffraction studies and show close gold–gold contacts.
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Fernández, E.J., López-de-Luzuriaga, J.M., Monge, M. et al. Trinuclear Gold(I) Complexes with Various Coordination Modes of N,N-dimethyldithiocarbamate. Journal of Cluster Science 11, 153–167 (2000). https://doi.org/10.1023/A:1009068916229
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DOI: https://doi.org/10.1023/A:1009068916229