Br2F8Rb2
Br2F8Rb2 is a stable, wide-band-gap insulating compound composed of rubidium, bromine, and fluorine.
About Br2F8Rb2
Br2F8Rb2 is a complex inorganic compound characterized by its insulating electronic nature and high thermodynamic stability. As a member of the rubidium-bromine-fluorine system, it occupies a secure position on the convex hull, indicating robust structural integrity under standard conditions.
This material is notable for its wide-band-gap behavior, which makes it a subject of interest for fundamental research into dielectric and insulating properties. With multiple reported structures, it serves as a valuable case study for understanding complex halide-fluoride coordination environments.
Key Properties
Cross-validated computational properties for Br2F8Rb2, 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 Br2F8Rb2, 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/mcm (No. 140) | tetragonal | 3.77 | 0.0000 | -8.242 | 3.39 |
| I4/mcm (No. 140) | tetragonal | 3.10 | 0.0000 | -3.597 | 2.82 |
| I4/mcm (No. 140) | — | — | — | — | — |
| — | — | — | — | — | 3.22 |
Applications
Where Br2F8Rb2 is used.
Frequently Asked Questions
Common questions about Br2F8Rb2, answered from cross-validated data.
What is Br2F8Rb2?
Br2F8Rb2 is a stable, wide-band-gap insulating compound composed of rubidium, bromine, and fluorine.
What is Br2F8Rb2 used for?
What is the band gap of Br2F8Rb2?
Is Br2F8Rb2 a metal, semiconductor, or insulator?
Is Br2F8Rb2 thermodynamically stable?
What is the crystal structure of Br2F8Rb2?
What is the density of Br2F8Rb2?
How many polymorphs of Br2F8Rb2 are known?
What elements does Br2F8Rb2 contain?
Where does the data for Br2F8Rb2 come from?
How It Compares
As a unique inorganic phase, Br2F8Rb2 represents a distinct structural arrangement within its elemental system. While it currently stands as a singular entity in this classification, its stability and insulating characteristics provide a benchmark for evaluating future synthetic compounds with similar stoichiometric complexity.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
Analyze Br2F8Rb2 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →