Re2O7
Rhenium(VII) oxide · Dirhenium heptoxide
Rhenium(VII) oxide is a stable, insulating binary oxide used primarily as a catalyst and a chemical precursor for synthesizing advanced materials.
About Rhenium(VII) oxide
Rhenium(VII) oxide is a thermodynamically stable binary oxide that functions as a wide-gap insulator. Its unique electronic structure and chemical reactivity make it a critical component in various catalytic processes and a foundational material for synthesizing other rhenium-based compounds. The compound is characterized by its significant structural diversity, with numerous reported crystalline arrangements documented across scientific databases. This structural flexibility supports its utility in specialized industrial applications where precise chemical pathways are required.
Key Properties
Cross-validated computational properties for Rhenium(VII) oxide, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Applications
Where Rhenium(VII) oxide is used.
Frequently Asked Questions
Common questions about Rhenium(VII) oxide, answered from cross-validated data.
What is Re2O7?
Rhenium(VII) oxide is a stable, insulating binary oxide used primarily as a catalyst and a chemical precursor for synthesizing advanced materials.
What is Re2O7 used for?
What is the band gap of Re2O7?
Is Re2O7 a metal, semiconductor, or insulator?
Is Re2O7 thermodynamically stable?
How many polymorphs of Re2O7 are known?
What elements does Re2O7 contain?
Where does the data for Re2O7 come from?
How It Compares
As a prominent binary oxide of rhenium, this compound serves as a primary reference point for the study of high-oxidation-state transition metal oxides. It is valued for its stability and predictable behavior in chemical reactions, distinguishing it as a reliable reagent compared to less stable or more volatile metal oxide counterparts.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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