Replicating the Structure of a Crosslinked Polyferrocenylsilane Inverse Opal in the Form of a Magnetic Ceramic

Crosslinked polyferrocenylsilane inverse opals have been prepared by the thermal ring‐opening polymerization of spirocyclic [1]silaferrocenophanes confined within the interstitial void spaces of silica crystal colloidal templates. These organometallic polymer inverse opals were converted to magnetic ceramic replicas through pyrolysis at 900 °C in high yields. Crosslinked polyferrocenylsilane inverse opals have been prepared by the thermal ring opening polymerization of spirocyclic [1]silaferrocenophanes confined within the interstitial void spaces of silica crystal colloidal templates. These organometallic polymer inverse opals could be converted in high yields to magnetic ceramic replicas through pyrolysis at 900 °C (see Figure).