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Synthesis and crystal structure of [WI(CO)(cis-dppen) η2-MeC2Me)2]I·CH2Cl2 {cis-dppen = bis(diphenylphosphino)ethene}

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Abstract

The complex [WI(CO)(cis-dppen)(η2-MeC2Me)2]I·CH2Cl2(1) is prepared as a by-product from the reaction of equimolar quantities of [WI2(CO)(NCMe)(η2-MeC2Me)2] and cisdppen {dppen = bis(diphenylphosphino)ethene}. Complex 1, [WI(CO)(cis-dppen)(η2-MeC2Me)2]I·CH2Cl2 crystallizes in the triclinic space group \({\text{P}}\bar 1\) with a = 11.189(13), b = 12.331(14), c = 15.395(17) Å, α = 83.61(1), β = 86.06(1), γ = 64.48(1)°, U = 1904 Å3, and Z = 2. The metal environment in the cation can best be considered as a distorted octahedron with the two but-2-yne groups taking up individual sites trans to phosphorus atoms of the dppen ligand. The coordination sphere is completed by mutually trans-carbonyl and iodide groups.

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Authors and Affiliations

  1. Department of Chemistry, University of Wales, Bangor, Gwynedd, LL57 2UW, UK

    Paul K. Baker & Latifah A. Latif

  2. Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, UK

    Michael G.B. Drew

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  1. Paul K. Baker
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Baker, P.K., Drew, M.G. & Latif, L.A. Synthesis and crystal structure of [WI(CO)(cis-dppen) η2-MeC2Me)2]I·CH2Cl2 {cis-dppen = bis(diphenylphosphino)ethene}. Journal of Chemical Crystallography 29, 907–911 (1999). https://doi.org/10.1023/A:1009526012075

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