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- W1497074582 abstract "A series of alkyne parallel μ3-η2-(//) substituted trinuclear cluster derivatives has been synthesized, containing the alkynes (HCCR, R=SiMe3, SiPh3 and tBu) coordinated to Ru3 and Os3 units and then converted into the corresponding chemically related acetylide derivatives. A 1H, 13C and 29Si NMR study was carried out for all the complexes and the results are also analyzed in comparison with results of Extended Hückel Molecular Orbital calculations carried out on the complexes and the free alkynes. In the acetylide derivatives, 13C1H and 187Os1H couplings involving the hydride, were measured. The 13C29Si couplings for all the derivatives which contain silicon shows the changes in hybridization of the Cβ. The structures of [(μ-H)Ru3(CO)9(CCR)] (R=SiMe3 and SiPh3) and [(μ-H)Os3(CO)9(CCR)] (R=SiPh3 and CMe3) and [Ru3(CO)10(HCCR)] (R=CMe3) were determined by single crystal X-ray diffraction methods." @default.
- W1497074582 created "2016-06-24" @default.
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- W1497074582 date "2002-05-01" @default.
- W1497074582 modified "2023-10-18" @default.
- W1497074582 title "1H, 13C and 29Si NMR study of acetylide and parallel alkyne substituted Ru3 and Os3 clusters derived from HCCR (R=SiMe3, SiPh3 and CMe3). X-ray crystallographic study of [(μ-H)M3(CO)9(CCR)] (M=Ru, R=SiMe3, SiPh3; M=Os, R=SiPh3, CMe3) and [Ru3(μ-CO)(CO)9(HCCR)] (R=CMe3)" @default.
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- W1497074582 doi "https://doi.org/10.1016/s0277-5387(02)00932-4" @default.
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