V8 O12 F4

V8O12F4 is a mixed-valence vanadium oxide fluoride compound belonging to the broader class of transition metal oxyfluorides, which are of significant research interest in materials science. This material exists primarily in the experimental/academic domain and is studied for its potential electronic and structural properties arising from the combination of vanadium redox chemistry with fluoride substitution. Such vanadium-based compounds are explored for energy storage, catalysis, and solid-state electronic applications where mixed oxidation states and framework flexibility can be leveraged.