Crystallographic and (spectro)electrochemical characterizations of cobalt(II) 10-phenyl-5,15-di-p-tolylporphyrin

The synthesis, cyclic and rotating disk electrode voltammograms, UV-visible absorption X-ray diffraction analyses of cobalt(II) 10-phenyl-5,15-di-p-tolylporphyrin (1-Co) are described. 1-Co was crystallized by slow diffusion n-hexane into a concentrated CH2Cl2 solution. reveals porphyrin aromatic cycle stacking in the crystal, C-H···π interactions solvent with π-system one tolyl group Co(II)···π (porphyrin ring) interactions. abstraction 1.0 F/mol during electrolysis at first oxidation potential followed spectroelectrochemistry. It leads to Co(II) → Co(III) transformation rather than formation cation radical ligand. These results were supported comparison disc UV-Visible spectra, before after 1-Co.