Redox activation of alkene ligands in platinum complexes with non-innocent ligands

Julie L. Boyer, Thomas R. Cundari, Nathan J. Deyonker, Thomas B. Rauchfuss, Scott R. Wilson

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The reactivity of metal olefin complexes with non-innocent ligands (NILs) was examined. Treatment of PtCI 2(diene) with the deprotonated catechol or aminophenol ligands afforded the corresponding Pt(NIL)(diene) complexes. The Pt( tBA FPh)(COD), R( tBA FPh)(nbd), and Pt(O 2C 6H 2 tBu 2)(COD) (H 2 tBA FPh = 2-(2-trifluoromethyl)anilino-4,6-di-tertbutylphenol, H 2O 2C 6H 2 tBu 2 = 3,5-di-ferf-butylcatechol) complexes were examined by cyclic voltammetry. Treatment of P t(BA fPh)(COD) or Pt( tBA fPh)(nbd) with AgPF 6 afforded the imino-semiquinones [Pt( tBA FPh)(COD)]PF 6 or [Pt( tBA FPh)(nbd)]PF 6, respectively. The [Pt( tBA FPh)(COD)] complex was unreactive toward nucleophiles, whereas the oxidized derivative, [Pt( tBA FPh)(COD)]PF 6, rapidly and stereospecifically added alkoxides at the carbon trans to the phenolate. The Pt( tBA FPh)(COD), [Pt( tBA FPh)(COD)]PF 6, Pt( tBA FPh)(C 8H 12OMe), and [Cp 2Co][Pt-( tBA FPh)(C 8H 12OMe)] complexes were characterized crystallographically.

Original languageEnglish (US)
Pages (from-to)638-645
Number of pages8
JournalInorganic Chemistry
Issue number2
StatePublished - Jan 19 2009

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry


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