USeO5
USeO5 is a semiconducting uranium selenate oxide that is theoretically stable enough to be synthesized for materials science research.
About USeO5
USeO5 is a complex uranium-based oxy-anion compound that exhibits semiconducting electronic behavior. Its structural configuration places it in a unique category of actinide-chalcogen-oxygen systems, where the interplay between the heavy uranium center and the selenium-oxygen framework defines its physical properties.
Because it is identified as a near-hull stable phase, this material is considered a prime candidate for experimental synthesis and characterization. Its existence within multiple structural databases underscores its significance as a target for researchers exploring the coordination chemistry of uranium in oxygen-rich environments.
Key Properties
Cross-validated computational properties for USeO5, aggregated across 4 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.
Reported Structures
Lowest-energy structures reported for USeO5, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| P21/m (No. 11) | monoclinic | 1.73 | 0.0139 | -8.212 | 6.15 |
| P21/m (No. 11) | — | — | — | — | — |
| P21/m (No. 11) | Monoclinic | — | — | — | 5.60 |
| P21/m (No. 11) | Monoclinic | — | — | — | 5.98 |
| P21/m (No. 11) | Monoclinic | — | — | — | 5.69 |
| C2/c (No. 15) | monoclinic | — | — | — | 0.85 |
Applications
Where USeO5 is used.
Frequently Asked Questions
Common questions about USeO5, answered from cross-validated data.
What is USeO5?
USeO5 is a semiconducting uranium selenate oxide that is theoretically stable enough to be synthesized for materials science research.
What is USeO5 used for?
What is the band gap of USeO5?
Is USeO5 a metal, semiconductor, or insulator?
Is USeO5 thermodynamically stable?
What is the crystal structure of USeO5?
What is the density of USeO5?
How many polymorphs of USeO5 are known?
What elements does USeO5 contain?
Where does the data for USeO5 come from?
How It Compares
As a specialized uranium selenate oxide, USeO5 represents a distinct structural motif within the broader landscape of actinide-based inorganic compounds. It serves as a valuable reference point for understanding how selenium and oxygen coordinate with uranium to form stable, semiconducting lattices.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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