Fe4 O3 F5

Fe₄O₃F₅ is an iron oxide fluoride compound belonging to the mixed-valence oxide-halide semiconductor family. This is a research-stage material that combines iron oxides with fluorine, creating a complex crystal structure that exhibits semiconductor behavior potentially useful for electronic and photonic applications. The fluorine incorporation into iron oxide frameworks is of interest in materials science for tuning electronic properties, redox chemistry, and ionic conductivity beyond conventional iron oxide ceramics.