Copolymerization of Epoxides with Carbon Dioxide Catalyzed by Iron–Corrole Complexes: Synthesis of a Crystalline Copolymer NakanoKoji KobayashiKazuki OhkawaraTakahiro ImotoHideyuki NozakiKyoko 2013 Iron–corrole complexes were found to copolymerize epoxides with CO<sub>2</sub>. The first iron-catalyzed propylene oxide/CO<sub>2</sub> copolymerization has been accomplished. Moreover, the glycidyl phenyl ether (GPE)/CO<sub>2</sub> copolymerization with this catalyst provided a crystalline material as a result of the isotactic poly­(GPE) moiety.