Rb2UO4
Rb2UO4 is a thermodynamically stable semiconducting oxide containing rubidium and uranium.
About Rb2UO4
Rb2UO4 is a thermodynamically stable inorganic compound composed of rubidium, uranium, and oxygen. As a member of the uranate family, it exhibits semiconducting electronic behavior, making it a subject of interest for fundamental solid-state physics and materials science investigations.
Its position on the convex hull signifies high thermodynamic stability, which facilitates its characterization across multiple structural databases. This stability is essential for understanding the bonding environments and electronic states inherent in complex uranium-based oxides.
Key Properties
Cross-validated computational properties for Rb2UO4, 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.
Reported Structures
Lowest-energy structures reported for Rb2UO4, 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. |
|---|---|---|---|---|---|
| I4/mmm (No. 139) | tetragonal | 1.90 | 0.0000 | -7.764 | 5.94 |
| I4/mmm (No. 139) | — | — | — | — | — |
| I4/mmm (No. 139) | Tetragonal | — | — | — | 5.75 |
| I4/mmm (No. 139) | Tetragonal | — | — | — | 6.04 |
| I4/mmm (No. 139) | Tetragonal | — | — | — | 5.86 |
Applications
Where Rb2UO4 is used.
Frequently Asked Questions
Common questions about Rb2UO4, answered from cross-validated data.
What is Rb2UO4?
Rb2UO4 is a thermodynamically stable semiconducting oxide containing rubidium and uranium.
What is Rb2UO4 used for?
What is the band gap of Rb2UO4?
Is Rb2UO4 a metal, semiconductor, or insulator?
Is Rb2UO4 thermodynamically stable?
What is the crystal structure of Rb2UO4?
What is the density of Rb2UO4?
How many polymorphs of Rb2UO4 are known?
What elements does Rb2UO4 contain?
Where does the data for Rb2UO4 come from?
How It Compares
As a stable uranate, Rb2UO4 serves as a representative example of how alkali metals influence the structural framework of uranium-oxygen systems. It provides a baseline for understanding the electronic transitions and lattice dynamics that define the broader class of ternary uranium oxides.
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.
Analyze Rb2UO4 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →