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      Dimeric rhodium(III), iridium(III) and ruthenium(II) thiosalicylate complexes

      Henderson, William; Nicholson, Brian K.; Oliver, Allen G.; Rickard, Clifton E.F.
      DOI
       10.1016/S0022-328X(00)00797-X
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      Henderson, W., Nicholson, B.K., Oliver, A.G. & Rickard, C.E.F. (2001). Dimeric rhodium(III), iridium(III) and ruthenium(II) thiosalicylate complexes. Journal of Organometallic Chemistry, 625(1), 40-46.
      Permanent Research Commons link: https://hdl.handle.net/10289/156
      Abstract
      Reactions of the chloride-bridged dimers [LMCl(μ-Cl)]₂ (M=Rh, Ir; L=Cp*=η⁵-C₅Me₅; M=Ru, L=η⁶-p-cymene) with two mole equivalents of thiosalicylic acid (HSC₆H₄CO₂H, H₂tsal) and excess base gives the dimeric rhodium(III), iridium(III) and ruthenium(II) thiosalicylate complexes [LM(tsal)]₂. Reaction of the complex [Cp*RhCl₂(PPh₂)] with one equivalent of H₂tsal and triethylamine in dichloromethane gives a mixture of the dimer [Cp*Rh(tsal)]₂ and the phosphine complex [Cp*Rh(tsal)(PPh₃)]; upon recrystallisation, pure dimer is obtained. A single-crystal X-ray diffraction study on the rhodium and ruthenium dimers reveals the expected thiolate-bridged M₂(μ-S)₂ unit. Electrospray mass spectrometry (ESMS) is a useful technique in studying the chemistry of the thiosalicylate complexes, all complexes giving strong [M+H]⁺ ions. With added thiosalicylic acid, cations of the type [(LM)₂(Htsal)₃]⁺ were detected in the mass spectra.
      Date
      2001-04-01
      Type
      Journal Article
      Publisher
      ELSEVIER SCIENCE SA
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      • Science and Engineering Papers [3019]
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