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      Synthesis and characterisation of [Pt₂(μ-S)(μ-I)(PPh₃)₄]⁺ – A cationic iodo analogue of the metalloligand [Pt₂(μ-S)₂(PPh₃)₄]

      Fong, S.W. Audi; Evans, Kim; Henderson, William; Nicholson, Brian K.; Hor, T.S. Andy
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      DOI
       10.1016/j.ica.2009.10.013
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      Fong, S. W. A., Evans, K., Henderson, E., Nicholson, B. K., & Hor, T. S. A. (2009). Synthesis and characterisation of [Pt₂(μ-S)(μ-I)(PPh₃)₄]⁺ – A cationic iodo analogue of the metalloligand [Pt₂(μ-S)₂(PPh₃)₄]. Inorganica Chimica Acta, 363(2), 301-307.
      Permanent Research Commons link: https://hdl.handle.net/10289/3442
      Abstract
      Reaction of [Pt₂(μ-S)₂(PPh₃)₄] with a number of transition metal–iodo complexes leads to the formation of the cationic iodo analogue [Pt₂(μ-S)(μ-I)(PPh₃)₄]⁺, identified using electrospray ionisation mass spectrometry (ESI MS). Synthetic routes to this complex were developed, using the reaction of [Pt₂(μ-S)₂(PPh₃)₄] with either [PtI₂(PPh₃)₂] or elemental iodine. The complex was characterised by NMR spectroscopy, ESI MS and an X-ray structure determination, which reveals the presence of a planar, disordered {Pt₂SI}⁺ core. Monitoring the iodine reaction by ESI MS allows the identification of various iodine species, including the short-lived intermediate [Pt₂(μ-S)₂(PPh₃)₄I]⁺, which allows a mechanism for the reaction to be proposed.
      Date
      2009
      Type
      Journal Article
      Publisher
      Elsevier
      Rights
      This is an author’s accepted version of an article published in the journal: Inorganica Chimica Acta. © 2009 Elsevier B.V.
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