RbHSeO4
rubidium hydrogen selenate · rubidium biselenate
Rubidium hydrogen selenate is a stable, insulating crystalline solid used primarily in materials science research.
About rubidium hydrogen selenate
Rubidium hydrogen selenate is a stable inorganic compound characterized by its insulating electronic nature. As a member of the hydrogen selenate family, it exhibits a robust structural framework that has been extensively documented across multiple crystallographic studies.
Its thermodynamic stability on the convex hull makes it a significant subject for researchers investigating proton-conducting materials and solid-state phase transitions. The compound is primarily utilized in fundamental materials science research to understand the behavior of hydrogen-bonded networks within crystalline lattices.
Key Properties
Cross-validated computational properties for rubidium hydrogen selenate, 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 RbHSeO4, 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. |
|---|---|---|---|---|---|
| P212121 (No. 19) | orthorhombic | 3.62 | 0.0000 | -5.458 | 3.47 |
| P1 (No. 1) | triclinic | 3.62 | 0.0005 | -5.457 | 3.46 |
| No. 0 | unknown | — | — | — | 3.38 |
| No. 0 | unknown | — | — | — | 3.35 |
| P212121 (No. 19) | Orthorhombic | — | — | — | 3.21 |
| P212121 (No. 19) | Orthorhombic | — | — | — | 3.40 |
| P212121 (No. 19) | Orthorhombic | — | — | — | 3.28 |
| P1 (No. 1) | Triclinic | — | — | — | 3.31 |
| P212121 (No. 19) | — | — | — | — | — |
| P1 (No. 1) | — | — | — | — | — |
| P1 (No. 1) | Triclinic | — | — | — | 3.43 |
| P1 (No. 1) | Triclinic | — | — | — | 3.25 |
Applications
Where rubidium hydrogen selenate is used.
Frequently Asked Questions
Common questions about rubidium hydrogen selenate, answered from cross-validated data.
What is RbHSeO4?
Rubidium hydrogen selenate is a stable, insulating crystalline solid used primarily in materials science research.
What is RbHSeO4 used for?
What is the band gap of RbHSeO4?
Is RbHSeO4 a metal, semiconductor, or insulator?
Is RbHSeO4 thermodynamically stable?
What is the crystal structure of RbHSeO4?
What is the density of RbHSeO4?
How many polymorphs of RbHSeO4 are known?
What elements does RbHSeO4 contain?
Where does the data for RbHSeO4 come from?
How It Compares
As a distinct hydrogen selenate, this compound serves as a critical reference point for understanding the structural and electronic trends within the broader class of alkali metal hydrogen selenates.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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