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      The reactivity of [Pt₂(μ-S)₂(PPh₃)₄] towards difunctional chloroacetamide alkylating agents: Formation of cyclized or bridged products

      Ujam, Oguejiofo Theophilus; Henderson, William; Nicholson, Brian K.; Fitchett, Christopher M.
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      Final bl Diamide bridging Pt2S2 manuscript.pdf
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      DOI
       10.1016/j.ica.2011.05.010
      Link
       www.sciencedirect.com
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      Ujam, O.T., Henderson, W., Nicholson, B.K. & Fitchett, C.M. (2011). The reactivity of [Pt₂(μ-S)₂(PPh₃)₄] towards difunctional chloroacetamide alkylating agents: Formation of cyclized or bridged products. Inorganica Chimica Acta, available online 23 May 2011.
      Permanent Research Commons link: https://hdl.handle.net/10289/5440
      Abstract
      The reactions of [Pt₂(μ-S)₂(PPh₃)₄] towards some bis(chloroacetamide) alkylating agents have been investigated. Reaction with one mole equivalent of the hydrazine-derived compound ClCH₂C(O)NHNHC(O)CH₂Cl led to the cyclized product [Pt₂{SCH₂C(O)NHNHC(O)CH₂S}(PPh₃)₄]²⁺ which showed two different PPh₃ environments in the ³¹P{1H} NMR spectrum, as a result of non-fluxional behavior of the dithiolate ligand in solution. Reactions of [Pt₂(μ-S)₂(PPh₃)₄] with the ortho and para isomers of the phenylenediamine-derived bis(chloroacetamides) ClCH2C(O)NHC6H4NHC(O)CH2Cl gave tetrametallic complexes containing two {Pt₂S₂} moieties spanned by the CH₂C(O)NHC₆H₄NHC(O)CH₂ group. Both the ortho and para isomers were crystallographically characterized; in the ortho isomer there is intramolecular CO=H–N and S•••H–N hydrogen bonding involving the two amide groups.
      Date
      2011
      Type
      Journal Article
      Publisher
      Elsevier
      Rights
      This is an author’s accepted version of an article published in the journal: Inorganica Chimica Acta. © 2011 Elsevier.
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      • Science and Engineering Papers [2525]
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