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Reactions of triosmium clusters with indole: X-ray structures of [Os3(CO)10(μ-OH)(μ-OMeCO)] and [Os3(μ-H)(CO)10(μ-1, 2-η2-NC8H6)]

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Abstract

Treatment of [Os3(CO)12] with indole in presence of a methanolic solution of Me3NO⋅2H2O at 60∘C afforded the previously reported compounds [(μ-H)Os3(CO)10(μ-OMe)] 2, [(μ-H)Os3(CO)10(μ-OH)] 3 and [Os3(CO)10(μ-OH)(μ-OMeCO)] 4 in 10, 5 and 20% yields, respectively. The reaction of [Os3(CO)10(MeCN)2] with indole at room temperature gave [(μ-H)Os3(CO)10(μ-1,2-η2-NC8H6)] 5 in 40% yield. Compounds 4 and 5 have been characterized by single crystal X-ray diffraction studies. Compound 4 crystallizes in the monoclinic space group P2(1)/c with a = 23.1239(3), b = 9.8087(4), c = 16.9017(6) Å, β = 92.6998(14)∘, Z = 8 and V = 3829.3(2) Å3 and 5 crystallizes in the monoclinic space group P2(1)/c with a = 9.009(3), b = 9.764(4), c = 24.906(6) Å, β = 93.452(14)∘, Z = 4 and V = 2186.9(13) Å3. Compound 4 consists of an open cluster of three osmium atoms with the hydroxy and methoxycarbonyl ligands bridging the open Os–Os edge. Compound 5 consists of an isosceles triangle of osmium atoms with one elongated Os–Os edge which is bridged by the hydride and the indolyl ligands.

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Authors and Affiliations

  1. Department of Chemistry, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh

    Noorjahan Begum, Md. Iqbal Hyder, Shariff E. Kabir & Shafali R. Karmakar

  2. Department of Chemistry, Cardiff University, P.O. Box 912, Park Place, Cardiff, CF10 3TB, United Kingdom

    G. M. Golzar Hossain

  3. Department of Chemistry, University of Montana, Missoula, MT, 59812

    Shariff E. Kabir

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  1. Noorjahan Begum
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  2. Md. Iqbal Hyder
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  3. G. M. Golzar Hossain
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  4. Shariff E. Kabir
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  5. Shafali R. Karmakar
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Correspondence to Shariff E. Kabir.

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Begum, N., Hyder, M.I., Hossain, G.M.G. et al. Reactions of triosmium clusters with indole: X-ray structures of [Os3(CO)10(μ-OH)(μ-OMeCO)] and [Os3(μ-H)(CO)10(μ-1, 2-η2-NC8H6)]. J Chem Crystallogr 35, 799–807 (2005). https://doi.org/10.1007/s10870-005-4333-7

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  • DOI: https://doi.org/10.1007/s10870-005-4333-7

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