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- W2149979716 abstract "Dimethylgold(III) chloride and bromide, (Me2AuX)2, react with bis(diphenylphosphanyl)methane (dppm, molar ratio 1:2) to give the P-monohapto complexes cis-Me2AuX(dppm) (1a, b) in quantitative yields. The products are readily oxidized by air to yield the P-hapto P′-monoxides 2a, b. Treatment of 1a, b with AgNO3 affords an ionic nitrate [Me2Au(dppm)]2 [NO3−]2 (1c), which contains a dinuclear cation. A mixed bromide/nitrate (from 1b and half the equivalent amount of AgNO3) is thermally unstable and undergoes elimination of ethane to give an ionic tetranuclear gold(I) complex [(dppm)4Au4Br2]2+ [NO3−]2 (3b). – Treatment of (Me2AuCl)2 with CH2(AsPh2)2 (dpam, molar ratio 1:2) gives cis-Me2-AuCl(dpam) (1d), the arsenic analog of 1a, which is not sensitive to oxygen. – The reaction of bis(diphenylphosphanyl)-amine (dppa) yields 1:1 P-monohapto adducts Me2. AuX(dppa), which are in equilibrium with ionic chelated systems Me2Au(dppa)+ X− (1e, f). Complex 1e is readily oxidized by air to the P-hapto P′-monoxide cis complex 2e. Treatment of 1e with AgNO3 gives the ionic nitrate Me2. Au(dppa)+ NO3− (1g). – All compounds were identified by standard analytical and spectroscopic techniques. The crystal structures of 2a, 3b, 1d, and 2e were determined by single-crystal X-ray diffraction studies." @default.
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- W2149979716 date "1996-01-01" @default.
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- W2149979716 title "Coordination Chemistry of Dimethylgold Halides with Bidentate Phosphorus and Arsenic Ligands – Revisited" @default.
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- W2149979716 doi "https://doi.org/10.1002/cber.19961290116" @default.
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