RbAlF4
RbAlF4 is a stable, insulating ternary fluoride compound used primarily in foundational materials research.

About RbAlF4
RbAlF4 is a thermodynamically stable inorganic compound that exists on the convex hull, indicating significant structural robustness. As a wide-gap insulator, it exhibits the characteristic electronic properties typical of complex fluoride systems, making it a subject of interest for fundamental materials science studies.
With multiple reported structures across major databases, this compound serves as a key reference point for understanding the coordination chemistry of aluminum and rubidium within a fluoride framework. Its stability profile suggests potential utility in specialized dielectric applications or as a precursor in solid-state synthesis.
Key Properties
Cross-validated computational properties for RbAlF4, 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.
Applications
Where RbAlF4 is used.
Frequently Asked Questions
Common questions about RbAlF4, answered from cross-validated data.
What is RbAlF4?
RbAlF4 is a stable, insulating ternary fluoride compound used primarily in foundational materials research.
What is RbAlF4 used for?
What is the band gap of RbAlF4?
Is RbAlF4 a metal, semiconductor, or insulator?
Is RbAlF4 thermodynamically stable?
How many polymorphs of RbAlF4 are known?
What elements does RbAlF4 contain?
Where does the data for RbAlF4 come from?
How It Compares
As a distinct inorganic fluoride, RbAlF4 occupies a unique position in the landscape of aluminum-based ternary compounds. It serves as a representative example of how alkali metal incorporation stabilizes the aluminum-fluoride lattice, providing a baseline for studying structural diversity in related halide systems.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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