Synthetic studies of the reaction between aldehydes and the triosmium cluster [Os3(CO)10(NCMe)2]
作者:Brian F.G. Johnson、Jack Lewis、Timothy I. Odiaka
DOI:10.1016/0022-328x(86)80175-9
日期:1986.6
The reaction of [Os3(CO)10(NCMe)2] (1) with aldehydes in refluxing cyclohexane affords the metal clusters [Os3(CO)10(μ-H)(COR)] (2, R = Me, Ph, CH2Ph or C6H13) in ca. 50% yield. The compound 2 (R = CH2Ph) undergoes hydrogenation under pressure to give the corresponding alcohol, while decarbonylation occurs in the presence of Me3NO to give the Me3N-substituted derivative [Os3(CO)9(NMe3)(μ-H)(COCH2Ph)]
NHC Complexes of Osmium Clusters: A Structural and Reactivity Study
作者:Craig E. Cooke、Michael C. Jennings、Michael J. Katz、R. K. Pomeroy、Jason A. C. Clyburne
DOI:10.1021/om800577x
日期:2008.11.24
which possessed a butterfly metal skeleton. The ruthenium analogue of (4), [Ru4(μ-H)4(CO)11(IMes)] (7), was prepared and identified spectroscopically but was found to be thermally unstable. Thermolysis of (4) in benzene yielded four products. The abnormalcarbenecomplex [Os4(μ-H)4(CO)11(a·IMes)] (10) (a denotes abnormalcarbene bonding through C3 or C4), an isomer of (4), and Os4(μ-H)(CO)10[(η-C)N(Mes)C2H2NC6H2
Preparation of [Os3(CO)11]2− and its reactions with OS3(CO)12; structures of [Et4N][HOs3(CO)11] and H2 OS4(CO
作者:Jeanette A. Krause、Upali Siriwardane、Terese A. Salupo、Joseph R. Wermer、David W. Knoeppel、Sheldon G. Shore
DOI:10.1016/0022-328x(93)83250-y
日期:1993.7
The dianion [Os3(CO)11]2− has been prepared by stoichiometric reduction of Os3(CO)12 with potassium-benzophenone ketyl. Infrared of [Et4N][HOs3(CO)11] was determined from a single crystal X-ray analysis. The anion structure consists of an Os3 triangle. One Os atom for 3558 independent reflections with I ⩾ 3σ(I). H2Os4(CO)13 was prepared by the reaction of K2[Os3(CO)11] with Os( These basal Os atoms
Cluster build-up reactions via the ionic coupling of tetraosmium anions and the [RhCp*(NCMe)3]2+ cation; the crystal and molecular structures of [Os4Rh(μ-H)3(MeCNH)(CO)11(η5-Cp*)], [Os4Rh(μ-H)2(CO)13(η5-Cp*)] and [Os4Rh2(μ-H)2(CO)11(η5-Cp*)2] (Cp*C5Me5)
作者:William Clegg、Neil Feeder、Ana M Martin Castro、Saifun Nahar、Paul R Raithby、Gregory P Shields、Simon J Teat
DOI:10.1016/s0022-328x(98)00834-1
日期:1999.1
that reduction of 1 is complete, and then the dication 3 added, two new products [Os4Rh(μ-H)2(CO)13(η5-Cp*)] 5 and [Os4Rh2(μ-H)2(CO)11(η5-Cp*)2] 6 are obtained in low yield. The three new complexes have been characterised spectroscopically and crystallographically. Cluster 4 contains the uncommon MeCNH group coordinated to an edge-bridged tetrahedral metal framework. The metal framework in 5 is also
Synthesis, characterization and crystal structures of a series of tetraosmium carbonyl clusters containing bidentate phosphine ligands
作者:Ya-Yin Choi、Wing-Tak Wong
DOI:10.1016/s0022-328x(97)00296-9
日期:1997.9
Reactions of the activated tetraosmium hydrido cluster 1 with a series of bidentate phosphine ligands PPh2(CH2)nPPh2 (n = 1, dppm; n = 3, dppp), PPh2(CH)2PPh2, (dppee) and (PPh2C5H4)2Fe, (dppf) gave several novel tetraosmiumclusters [Os4(μ-H)4(CO)10(μ-dppm)] 2, [Os4(μ-H)4(CO)10(μ-dppee)] 3a, [Os4(μ-H)4(μ-H)4(CO)10 (η2-dppee)] 3b [Os4(μ-H)4(CO)10(μ-dppp)] 4 and [Os4(μ-H)4(CO)10(μ-dppf)] 5 in moderate
活化的氢化四氢簇1与一系列双齿膦配体PPh 2(CH 2)n PPh 2(n = 1,dppm; n = 3,dppp),PPh 2(CH)2 PPh 2,(dppee)的反应和(PPh 2 C 5 H 4)2 Fe,(dppf)给出了几个新颖的四os簇[Os 4(μ-H)4(CO)10(μ-dppm)] 2,[Os 4(μ-H)4(CO)10(μ-dppee)]图3a,[O的4(μ-H)4(μ-H)4(CO)10(η 2 -dppee)]图3b [O的4(μ-H)4(CO)10(μ-DPPP)] 4和[Os 4(μ-H)4(CO)10(μ-dppf)] 5处于中等至良好的产量。