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      Open platinum aggregate frameworks with overhead dithiolate bridges

      Chong, Siew Huay; Henderson, William; Hor, T.S. Andy
      DOI
       10.1002/ejic.200700620
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      Chong, S. H., Henderson, W., & Hor, T. S. A. (2007). Open platinum aggregate frameworks with overhead dithiolate bridges. European Journal of Inorganic Chemistry, 31, 4958-4964.
      Permanent Research Commons link: https://hdl.handle.net/10289/3446
      Abstract
      A convenient method has been developed to bring together two discrete moieties of [Pt₂(μ-S)₂(PPh₃)₄] to give an open Pt₄ aggregate of Pt₂•••(spacer)•••Pt₂, as exemplified in the isolation of [(PPh₃)₄Pt₂(μ-S)(μ-SRS)(μ-S)Pt₂(PPh₃)₄](PF₆)₂ [R = m-CH₂C₆H₄CH₂, p-CH₂C₆H₄CH₂, CH₂C₁₀H₆CH₂, and CH₂(C₆H₄)₂CH₂]. The spacer is a dithiolate with an extended skeletal backbone formed from the alkylation of sulfide with a suitable dibromo-organic compound. This synthetic methodology can tolerate a range of conformationally contrasting thiolate substituents with different chemical functionalities. Shorter or stereochemically more restrictive spacers could opt to be an intramolecular bridge over the Pt₂ core, as given in [Pt₂(μ-S-o-CH₂C₆H₄-C₆H₄CH₂S)(PPh₃)₄](PF₆)₂. A few representative complexes have been characterized by single-crystal X-ray diffraction analysis.
      Date
      2007
      Type
      Journal Article
      Publisher
      John Wiley & Sons, Ltd.
      Collections
      • Science and Engineering Papers [3143]
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