The first full assignment of H-1 NMR chemical shifts for iron corroles and the first synthesis of a series of (halogeno)iron corroles reveal very large effects of the axial ligands on the corresponding spectra, which apparently reflect differences in the relative importance of metal-to-corrole and corrole-to-metal pi-donation. These findings pave the way for a thorough analysis of the electronic structures of such complexes.
Iron-corrole complexes were found to copolymerize epoxides with CO2. The first iron-catalyzed propylene oxide/CO2 copolymerization has been accomplished. Moreover, the glycidyl phenyl ether (GPE)/CO2 copolymerization with this catalyst provided a crystalline material as a result of the isotactic poly(GPE) moiety.