Catalyzed autoxidation of azide by cobalt(II) (2,3,9,10-tetramethyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene)2+

Ela Solomon-Rapaport, Alexandra Masarwa, Haim Cohen, Dan Meyerstein

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The catalytic autoxidation of azide by Co(tim)2+ was studied. In the presence of dioxygen Co(tim)(H2O)22+ (tim = 2,3,9,10-tetramethyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene) reacts with azide in a complex process to produce Co(tim)(N3)(x)/((3-x))+ (x = 1 or 2) (λ(max) at 340 nm) and dinitrogen. The reaction is clearly catalytic with up to several hundred turnovers. The dioxygen dependence of the reaction implies the involvement of an oxygen adduct, stabilized by an axial azide ligand. (C) 2000 Elsevier Science S.A.

Original languageEnglish
Pages (from-to)42-47
Number of pages6
JournalInorganica Chimica Acta
Issue number1-2
StatePublished - 11 Sep 2000


  • Azamacrocyle complexes
  • Azide
  • Catalyzed autoxidation
  • Cobalt complexes
  • Dioxygen


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