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Electrochemical cation formation of selected tetraazaannulenes

Authors
Journal
Electrochimica Acta
0013-4686
Publisher
Elsevier
Publication Date
Volume
31
Issue
1
Identifiers
DOI: 10.1016/0013-4686(86)80070-6
Disciplines
  • Chemistry

Abstract

Abstract The electrochemical generation of π-cation radicals for several bridgehead-substituted tetraazaannulenes was studied at a glassy carbon electrode in DMF using cyclic voltammetry. The π-cation formaton potentials were measured for the macrocyclic ligands and for some of their divalent metal complexes. Parallels were observed between the first oxidation potential of the macrocycles and the Hammett substituent constant, σ, for para-substituted bridgehead groups. The stability of the electrode-generated π-radical cations was found to be dependent on the presence and structure of the bridgehead substituent, as well as on the nature of the central ion present.

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