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      Hydrogen bonding in crystalline alcohol solvates of the platinum(II) sulfido complex [Pt2( -S)2(PPh3)4]

      Henderson, William; Thwaite, Simon; Nicholson, Brian K.; Hor, T.S. Andy
      DOI
       10.1002/ejic.200800821
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      Henderson, W., Thwaite, S., Nicholson, B.K. & Hor, T.S.A. (2008). Hydrogen bonding in crystalline alcohol solvates of the platinum(II) sulfido complex [Pt₂(μ-S)₂(PPH₃)₄]. European Journal of Inorganic Chemistry, (32), 5119-5124.
      Permanent Research Commons link: https://hdl.handle.net/10289/2186
      Abstract
      Suspension of [Pt₂( -S)₂(PPh₃)₄] in lower alcohols results in recrystallisation, forming yellow to yellow-orange microcrystals of the solvates [Pt₂( -S)₂(PPh₃)₄]•nROH (R = Me, Et, nBu). The di-ethanol solvate was characterised by means of a single-crystal X-ray diffraction study and 1H NMR spectroscopy. The structure consists of an ethanol molecule hydrogen-bonded in an asymmetric bifurcated fashion to the {Pt₂S₂} group, with the second, disordered ethanol molecule involved in a cooperative hydrogen-bonding interaction with the oxygen of the first ethanol. Thermogravimetric analysis shows that the alcohol is relatively easily lost, regenerating orange, unsolvated [Pt₂( -S)₂(PPh₃)₄]. [Pt₂( -S)₂(PPh₃)₄] readily dissolves in hexafluoro-2-propanol, yielding yellow crystals of [Pt₂( -S)₂(PPh₃)₄]•6(CF₃)₂CHOH on evaporation. Characterisation by X-ray diffraction shows that the structure contains a [Pt₂ ( -S)₂(PPh₃)₄] hydrogen-bonded to a single(CF₃)₂CHOH molecule, with the additional (CF₃)₂CHOH molecules forming a discrete hydrogen-bonded pentameric cluster in the crystal.
      Date
      2008
      Type
      Journal Article
      Publisher
      Wiley - VCH Verlag GmbH & Co. KGaA
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      • Science and Engineering Papers [3019]
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