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- W1490808718 abstract "The clusters Ru3(CO)12−n(PPh2H)n (n = 2, 3), HRu3(CO)10(μ-PPh2), HRu3-(CO)9(μ-PPh2) and HRu3(CO)7(μ-PPh2)3 show considerable activity in the selective hydrogenation of diphenylacetylene to stilbenes; the phosphine-substituted derivatives are also very efficient in the isomerization of cis-stilbene to trans-stilbene. The latter product is often found as a precipitate in the vials after the hydrogenation or isomerization experiments. Different cis/trans-stilbene ratios in the hydrogenation solutions have been found for the phosphine-substituted and the phosphido-bridged clusters; this points to different reaction patterns and/or intermediates. A comparison of the behaviour of C2Ph2, C2Et2 and HC2But under the same conditions and in the presence of the same phosphido-bridged cluster has been made; the nature of the alkyne has an important influence on the hydrogenation rate and the formation of reaction intermediates" @default.
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- W1490808718 date "1989-07-01" @default.
- W1490808718 modified "2023-09-23" @default.
- W1490808718 title "Phosphine-substituted and phosphido-bridged metal clusters in homogeneous catalysis" @default.
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- W1490808718 doi "https://doi.org/10.1016/0022-328x(89)85191-5" @default.
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