Synthesis of Binuclear Copper (II) Complexes with Expanded Porphyrins

Document Type : Research Article


1 Department of Chemistry, University of Arak, P.O. Box 37156 Arak, I.R. IRAN

2 Department of Chemistry, University of Texas at Austin, U.S.A


The synthesis and characterization of some new binuclear copper (II) complexes, based on the use of large, pyrole-containing macrocycles, the so called "expanded porphyrins", [Cu2(macrocycle)]+4 is described. Electron Spin Resonance (ESR) studies indicate a weak "half-field line", which is characteristic of the Cu(II)-Cu(II) dimer, is observed at about 1600G. The observation of this band strongly suggests that the hyperfine structure arises from a spin triplet species.


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