One-electron oxidation of a GaIII-corrole with N(4-BrC6H4)3SbCl6 resulted in an air-stable non-innocent GaIII-corrole radical. The single-crystal X-ray crystallography of the 2,17-bis-formyl-5,10,15-tris(pentafluorophenyl)corrolato gallium(III)(chloride) radical ([3-Cl].) revealed delocalization of the unpaired electron, which was further confirmed by electron spin resonance (ESR) spectroscopy and spin density distribution plot. In addition, the nucleus-independent chemical shift (NICS), anisotropy-induced current density (AICD) and harmonic oscillator model of aromaticity (HOMA) supported a  π-electron-conjugated (or antiaromatic) radical.
All Science Journal Classification (ASJC) codes
- Organic Chemistry