RbIO4
rubidium periodate · rubidium metaperiodate
Rubidium periodate is an inorganic salt composed of rubidium and the periodate anion. It is primarily utilized in specialized chemical research and as a reagent in laboratory synthesis.
IORb
Overview
Key Properties
Cross-validated computational properties for rubidium periodate, 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.
2.49 eV
Range across DFT structures
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.
0.000 eV/atom
Best (lowest) across sources
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.
On hull (stable)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
9
4 databases, 3 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for RbIO4, 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. |
|---|---|---|---|---|---|
| I41/a (No. 88) | tetragonal | 2.49 | 0.0000 | -4.886 | 4.05 |
| I41/a (No. 88) | — | — | — | — | — |
| Pm (No. 6) | Monoclinic | — | — | — | 3.36 |
| I41/a (No. 88) | tetragonal | — | — | — | 2.01 |
| I41/a (No. 88) | Tetragonal | — | — | — | 4.02 |
| Amm2 (No. 38) | Orthorhombic | — | — | — | 3.58 |
| Pm (No. 6) | Monoclinic | — | — | — | 3.83 |
| I41/a (No. 88) | Tetragonal | — | — | — | 3.75 |
| I41/a (No. 88) | Tetragonal | — | — | — | 3.84 |
Uses
Applications
Where rubidium periodate is used.
chemical synthesislaboratory reagentoxidizing agent
Reference
Frequently Asked Questions
Common questions about rubidium periodate, answered from cross-validated data.
What is RbIO4?
Rubidium periodate is an inorganic salt composed of rubidium and the periodate anion. It is primarily utilized in specialized chemical research and as a reagent in laboratory synthesis.
More questions
What is RbIO4 used for?
rubidium periodate (RbIO4) is used in chemical synthesis, laboratory reagent, and oxidizing agent.
What is the band gap of RbIO4?
rubidium periodate (RbIO4) has a DFT-computed band gap of 2.49 eV across 9 reported structures.
Is RbIO4 a metal, semiconductor, or insulator?
With a band gap up to 2.49 eV it is a semiconductor.
Is RbIO4 thermodynamically stable?
Yes — rubidium periodate (RbIO4) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of RbIO4?
The lowest-energy reported polymorph of rubidium periodate (RbIO4) is tetragonal symmetry, space group I41/a (No. 88).
What is the density of RbIO4?
The computed density of the ground-state structure of rubidium periodate (RbIO4) is 4.05 g/cm³.
How many polymorphs of RbIO4 are known?
9 structures of RbIO4 are reported across 4 databases, spanning 3 distinct space groups.
What elements does RbIO4 contain?
rubidium periodate (RbIO4) contains I, O, and Rb (3 elements).
Where does the data for RbIO4 come from?
RbIO4 data is cross-referenced from materials_project, jarvis, mpaloe, cod.
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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