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- W1552091710 abstract "The reactions of dihydrogen (80°C, 20 bar, 2 h) with a series of tertiary phosphine and phosphite complexes Ru3(CO)12-n(L)n (L) = PMe3, PPh3, PPh (OMe)2 or P(OMe)3;n = 1–3), and with complexes containing dppm, dppe, dpam and PPh2(C6H4CH=CH2-2) have been studied. Complexes containing monodentate ligands gave tetranuclear complexes Ru4(μ-H)4(CO)12-n(L)n (n = 0–3, but not 4), whereas complexes with bidentate ligands showed varying behaviour. Thus Ru3(μ-dppm)(CO)10 gave Ru3(μ-H)2(μ3-PPhCH2PPh2)(CO)9, further hydrogenation of which afforded Ru3(μ-H)2(μ3-PPh)(CO)8(PMePh2). Ru3(μ-dppe)(CO)10 gave a mixture of Ru3(μ-H)(μ3-PPhCH2CH2PPh2)(CO)9 and Ru4(μ-H)4 (μ-dppe)(CO)10 as the major products, and Ru3(μ-η2,P-CH2=CHC6H4PPh2)(CO)10 gave a mixture of Ru4(μ-H)4(CO)12-nPPh2(C6H4Et-2)n (n = 0 and 1). Pyrolysis of Ru4(μ-H)4 (μ-dppm)(CO)10 afforded Ru4(μ-H)3(μ3-PPhCH2PPh2)(μ-CO)2(CO)8. The molecular structures of Ru3(μ-H)2(μ3-PPh)(CO)8(PMePh2), Ru4(μ-H)4)(μ-dppm)(CO)10 and Ru4(μ-H)3(μ3-PPhCH2PPh2)(μ-CO)2(CO)8 have been determined: 2286, 4930 and 6393 data (I ≽ 2.5σ(I)) were refined to R and Rw values of 0.032 and 0.037, 0.026 and 0.035, and 0.043 and 0.053, respectively. Hydrogenation of Os3(μ-dppm)(CO)10 gave Os3(μ-H)2(μ-dppm)(CO)8, whose structure was also determined: 3367 data with I ≽ 2.5 σ(I) were refined to Rw 0.052." @default.
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- W1552091710 date "1986-11-01" @default.
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- W1552091710 title "Cluster chemistry" @default.
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- W1552091710 doi "https://doi.org/10.1016/0022-328x(86)82088-5" @default.
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