RbNi2F6
RbNi2F6 is a semiconducting fluoride compound that is considered a viable candidate for laboratory synthesis.
About RbNi2F6
RbNi2F6 is a complex fluoride compound characterized by its semiconducting electronic nature. Its composition, involving rubidium and nickel, places it within a specialized group of metal fluorides that are frequently investigated for their unique structural arrangements.
As a near-hull material, this compound is considered a promising candidate for experimental synthesis. The existence of multiple reported structures across databases underscores its significance as a subject of ongoing crystallographic and materials science study.
Key Properties
Cross-validated computational properties for RbNi2F6, 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 RbNi2F6, 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. |
|---|---|---|---|---|---|
| Fd-3m (No. 227) | cubic | 0.00 | 0.0184 | -5.005 | 4.19 |
| Imma (No. 74) | orthorhombic | 0.17 | 0.0202 | -5.003 | 3.99 |
| Fd-3m (No. 227) | — | — | — | — | — |
| Fd-3m (No. 227) | Cubic | — | — | — | 3.96 |
| Fd-3m (No. 227) | Cubic | — | — | — | 4.23 |
| Fd-3m (No. 227) | Cubic | — | — | — | 4.17 |
| R-3m (No. 166) | — | — | — | — | — |
Applications
Where RbNi2F6 is used.
Frequently Asked Questions
Common questions about RbNi2F6, answered from cross-validated data.
What is RbNi2F6?
RbNi2F6 is a semiconducting fluoride compound that is considered a viable candidate for laboratory synthesis.
What is RbNi2F6 used for?
What is the band gap of RbNi2F6?
Is RbNi2F6 a metal, semiconductor, or insulator?
Is RbNi2F6 thermodynamically stable?
What is the crystal structure of RbNi2F6?
What is the density of RbNi2F6?
How many polymorphs of RbNi2F6 are known?
What elements does RbNi2F6 contain?
Where does the data for RbNi2F6 come from?
How It Compares
As a member of the broader class of transition metal fluorides, RbNi2F6 serves as a structural reference point for understanding how alkali metals influence the coordination environments of nickel in fluorine-based lattices.
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 RbNi2F6 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →