Π-Cyclopropenyl Derivatives of the Transition Metals

  • E. W. Gowling
  • S. F. A. Kettle
Conference paper


Complexes are known in which 4, 5, 6 and 7 membered carbon rings are symmetrically bonded to a transition metal atom. Two attempts to form similar complexes of three membered rings, using triphenylcyclopropenyl (1) salts, have been unsuccessful (2, 3). It is a fairly true generalisation that stable complexes of Cn conjugated systems with n small exist at the end of a transition series, those with n large at the beginning. Accordingly, we investigated the reaction between nickel carbonyl and triphenyl-cyclopropenyl bromide {I} in a mutual solvent, methanol. Fine red crystals of >Π-triphenylcyclopropenyl nickel carbonyl bromide {II} precipitated. The probable structure of this compound is shown in the Figure.


Membered Ring Transition Metal Atom Transition Series Zinc Powder Donor Solvent 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. 1.
    COFFEY, C. E., J. Am. Chem. Soc., 84, 118 (1962).CrossRefGoogle Scholar
  2. 2.
    CHATT, J., and GUY, R. G., Chem. and Ind. (London), 1963, 212.Google Scholar
  3. 3.
    BRESLOW, R., and CHANG, H. W., J. Am. Chem. Soc., 83, 2367 (1961). See also Sunderalingham, M., and Jensen, C. H., J. Am. Chem. Soc., 85, 3302 (1963).CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Wien 1964

Authors and Affiliations

  • E. W. Gowling
    • 1
  • S. F. A. Kettle
    • 1
  1. 1.Department of ChemistryThe UniversitySheffieldEngland

Personalised recommendations