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Russian Chemical Bulletin

, Volume 57, Issue 2, pp 309–315 | Cite as

ESR study of reactivity of the complex (η2-C60)Os(CO)(PPh3)2(CNBut) toward free radicals

  • R. G. Gasanov
  • M. V. Tsikalova
  • E. V. Martynova
  • Yu. N. Novikov
Full Articles
  • 32 Downloads

Abstract

Addition of the ·P(O)(OPri)2, Me·, Et·, ·But, and Cl3C· radicals to the (ν2-C60)Os(CO)-(PPh3)2(CNBut) complex (1) was studied by ESR spectroscopy. The spectral parameters of the spin-adducts of these radicals with complex 1 were determined. The predominant direction of the attack by the ·P(O)(OPri)2, ·But, and Cl3C· radicals are the cis-1 and cis-2 bonds of the fullerene molecule. The stability of the spin-adducts depends substantially on the nature of the added radical. The addition rate constants of the ·P(O)(OPri)2, ·But, and Cl3C· radicals to complex 1 and the dimerization rate constants for these spin-adducts were determined.

Key words

fullerenes complexes radical reactions spin-adducts electron paramagnetic resonance regiomers addition and dimerization rate constants competitive kinetics 

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Copyright information

© Springer Science+Business Media, Inc.  2008

Authors and Affiliations

  • R. G. Gasanov
    • 1
  • M. V. Tsikalova
    • 1
  • E. V. Martynova
    • 1
  • Yu. N. Novikov
    • 1
  1. 1.A. N. Nesmeyanov Institute of Organoelement CompoundsRussian Academy of SciencesMoscowRussian Federation

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