Controlled introduction of metal cations into polymerizable ionic liquid-polyoxomolybdate hybrid crystals
A polymerizable ionic-liquid cation having methacryl group and imidazolium moieties (denoted as MAImC1) was successfully hybridized with octamolybdate (Mo8O264−, Mo8) to obtain inorganic–organic hybrid crystals containing monovalent metal cations. The hybrid crystals were initially prepared as sodium ion-containing hybrid crystal of MAImC1–Na–Mo8. The sodium cations in MAImC1–Na–Mo8 were exchangeable to other monovalent metal cations such as silver or potassium to form hybrid crystals of MAImC1–Ag–Mo8 or MAImC1–K–Mo8. Their molecular and crystal structures were clearly revealed by single crystal X-ray analyses. The MAImC1–Na–Mo8 hybrid crystal worked as the hybrid monomer, and was found polymerizable by a radical polymerization using AIBN as an initiator to obtain inorganic–organic polymers (P-MAImC1–Na–Mo8). The conductivities of the hybrid monomer and polymer consisting of MAImC1–Na–Mo8 were investigated.