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- W1996655593 abstract "The reaction of the coordinatively unsaturated complex [Ru2(CO)4(μ-H)(μ-PtBu2)(μ-dppm)] (1, dppm = Ph2PCH2PPh2)] with the nitrosonium ion was revisited. Even by variation of the reaction conditions, the reaction afforded in each case not the sole addition product [Ru2(CO)4(μ-NO)(μ-H)(μ-PtBu2)(μ-dppm)]+ (2) as reported by us in an earlier paper. Instead always a mixture of three compounds containing the complexes [Ru2(CO)4(μ-H)2(μ-PtBu2)(μ-dppm)]+ (3), [Ru2(CO)4(μ-NO)(μ-PtBu2)(μ-dppm)] (4), beside the originally described complex 2 was obtained. A new synthetic procedure affording compound 4 as the sole product by reaction of 1 with the nitrosylating reagent diazald (N-methyl-N-nitroso-p-toluenesulfonamide) is described. It was found that complex 2 can act as an acid strong enough to protonate the starting complex 1. Thus, the formation of the mixture of components in the title reaction could be explained. A mixing experiment of equimolar amounts of 1 and 2 showed unambiguously the formation of complexes 3 and 4. A clean preparation of complex 2 as the sole product in form of its tetrafluoridoborate salt is only possible by reaction of 4 with tetrafluoridoboric acid in diethyl ether solution. The X-ray crystal structure of [2]BF4 is reported confirming the molecular structure of the complex 2. Using the originally described preparation route for 2 afforded in each attempt of crystallization the complexes 2 and 3 as 1:1 mixture in the solid." @default.
- W1996655593 created "2016-06-24" @default.
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- W1996655593 date "2011-07-25" @default.
- W1996655593 modified "2023-09-25" @default.
- W1996655593 title "Synthese und Kristallstruktur von [Ru2(CO)4(μ-H)(μ-NO)(μ-PtBu2)(μ-PPh2CH2PPh2)]BF4" @default.
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- W1996655593 doi "https://doi.org/10.1002/zaac.201100226" @default.
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