H2W2O7
H2W2O7 is a metastable, semiconducting tungsten-based compound used in materials science research.
About H2W2O7
H2W2O7 is a semiconducting compound composed of hydrogen, tungsten, and oxygen. As a metastable phase, it represents a specific structural arrangement within the broader family of hydrated tungsten oxides, which are recognized for their complex coordination environments and potential for chemical tuning.
Its semiconducting nature makes it a subject of interest for researchers investigating electronic and catalytic applications. The existence of multiple reported structures across various databases underscores its significance in understanding the phase behavior of tungsten-based materials.
Key Properties
Cross-validated computational properties for H2W2O7, 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 H2W2O7 is used.
Frequently Asked Questions
Common questions about H2W2O7, answered from cross-validated data.
What is H2W2O7?
H2W2O7 is a metastable, semiconducting tungsten-based compound used in materials science research.
What is H2W2O7 used for?
What is the band gap of H2W2O7?
Is H2W2O7 a metal, semiconductor, or insulator?
Is H2W2O7 thermodynamically stable?
How many polymorphs of H2W2O7 are known?
What elements does H2W2O7 contain?
Where does the data for H2W2O7 come from?
How It Compares
As a unique tungstic acid derivative, H2W2O7 occupies a specialized niche in materials science. Without direct structural siblings in this specific classification, it serves as a critical reference point for studying the stability limits and electronic properties of metastable metal-oxide hydrates.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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