Synthesis and characterisation of a bulky chelating bis(phosphine) ligand, 1,2-bis(dinbutylphosphino)ethane (DBPE), and its iron metal coordinated complexes, Fe(DBPE)2Cl2 and Fe(DBPE)2(CCC6H5)2

Jack Lewis, Muhammad S. Khan, Ashok K. Kakkar, Paul R. Raithby, Klaus Fuhrmann, Richard H. Friend

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The synthesis of a bulky chelating bis(phosphine) ligand, 1,2-bis(dinbutylphosphino)ethane, nBu2PCH2CH2PnBu2 (1) (Bu = Butyl = C4H9) (DBPE) is reported. This ligand was coordinated to iron by treatment with FeCl2 to yield Fe(DBPE)2Cl2 (2) which is an important precursor of a variety of σ-acetylide complexes, e.g. Fe(DBPE)2 (CCC6H5)2 (3). Complex 2 is paramagnetic in solution at room temperature and diamagnetic in the solid state. The optical absorption spectrum of 3 shows strong absorptions associated with π-π{black star} transition of the acetylenic unit.

Original languageEnglish
Pages (from-to)135-139
Number of pages5
JournalJournal of Organometallic Chemistry
Issue number1-2
Publication statusPublished - Jul 21 1992


ASJC Scopus subject areas

  • Biochemistry
  • Chemical Engineering (miscellaneous)
  • Inorganic Chemistry
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Science (miscellaneous)
  • Materials Chemistry

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