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- W2056292281 abstract "Abstract As part of a study of the role of hydridoacetylide and hydridoalkenylosmium clusters as intermediates in the synthesis of heterometallic osmium-nickel derivatives, 3,3-dimethylbut-1-yne complexes of Os3(CO)12 and H2Os3(CO)10 were synthesized and characterized. The structure of the hydridovinyl compound HOs3(CO)10(μ-η2-CHCHBut) has been determined by X-ray diffraction; the crystals are monoclinic, space group P21/n with a 13.861(10), b 17.177(11), c 9.267(7) A, β 108.01(4)° and Z = 4. The structure has been solved from diffractometer data by direct and Fourier methods and refined by full-matrix least-squares to a R value of 0.052 for 2290 observed reflections. This cluster is one of the few μ-η2-alkenyl compounds to have been structurally characterized. The alkenyl-ligand bridges the Os(2)Os(3) edge forming a σ-bond to Os(2) and a π-bond to Os(3). The C(11)C(12) bond length of the alkenyl ligand is 1.38(4) A. The orientation of the ligand in the cluster and the NMR behaviour of the cluster are discussed. Relationships between the various clusters derived from t-butylacetylene are outlined." @default.
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- W2056292281 date "1983-06-01" @default.
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- W2056292281 title "Multi-site bound hydrocarbyls on osmium clusters. The reactions of t-butylacetylene with Os3(CO)12 and H2Os3(CO)10. Characterization of the products and crystal structure of HOs3(CO)10(HCCHBut)" @default.
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- W2056292281 doi "https://doi.org/10.1016/s0022-328x(00)99436-1" @default.
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