manganeseIIIII

Manganese(Ⅴ), often represented in informal notation as manganeseIIIII, denotes manganese in the +5 oxidation state. In general, Mn in aqueous solution favors +2 and +7 chemistries, with +4 and +6 appearing less commonly. The +5 state is comparatively rare in solution but occurs more readily in solid oxides and certain oxoanions, where the oxidation environment and lattice interactions help stabilize the higher oxidation state.

Compounds and structure commonly associated with Mn(Ⅴ) include manganese(V) oxide, Mn2O5, which exists in several polymorphs such as alpha- and beta-Mn2O5. These solid oxides are typically prepared at elevated temperatures under oxidative conditions and tend to be less stable in ambient aqueous media. Mn(Ⅴ) centers are often stabilized within oxide lattices or mixed-valence systems, where the +5 state can be part of a broader manganese oxide framework.

Chemical properties and reactivity of Mn(Ⅴ) compounds are characterized by strong oxidizing power. They can accept electrons to form Mn(IV) or Mn(VI) species, and in solid materials they participate in redox transformations relevant to catalysis and energy storage. In solution, Mn(Ⅴ) species tend to hydrolyze or disproportionate, shifting toward Mn(IV) and Mn(VI) equilibria, or reducing to Mn(II) under strong reducing conditions. Because Mn(Ⅴ) chemistry is less common than Mn(II), Mn(IV), or Mn(VII), it is typically discussed in the context of solid-state oxides and specialized oxoanions rather than routine aqueous manganese chemistry.

Naming and usage: The standard terminology for this oxidation state is manganese(Ⅴ). The form manganeseIIIII is not widely used in current scientific literature.