BeF4
tetrafluoroberyllate
Beryllium tetrafluoride is a chemical species typically found as an anion in various salt structures. It serves as a fundamental building block in the study of coordination chemistry and is often utilized in the synthesis of specialized beryllium-containing materials.
Key Properties
Cross-validated computational properties for BeF4, 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 BeF4, 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. |
|---|---|---|---|---|---|
| Pnma (No. 62) | orthorhombic | 0.03 | 0.2587 | -4.151 | 1.15 |
| Pmm2 (No. 25) | Orthorhombic | — | — | — | 3.13 |
| R3m (No. 160) | Trigonal | — | — | — | 2.99 |
| Cmmm (No. 65) | Orthorhombic | — | — | — | 4.03 |
| Amm2 (No. 38) | Orthorhombic | — | — | — | 2.76 |
| Cmmm (No. 65) | Orthorhombic | — | — | — | 3.33 |
| Cm (No. 8) | Monoclinic | — | — | — | 4.06 |
| Cm (No. 8) | Monoclinic | — | — | — | 3.01 |
| Cm (No. 8) | Monoclinic | — | — | — | 3.29 |
| P-1 (No. 2) | Triclinic | — | — | — | 3.94 |
| P2/m (No. 10) | Monoclinic | — | — | — | 2.84 |
| R3m (No. 160) | Trigonal | — | — | — | 3.09 |
Applications
Where BeF4 is used.
Frequently Asked Questions
Common questions about BeF4, answered from cross-validated data.
What is BeF4?
Beryllium tetrafluoride is a chemical species typically found as an anion in various salt structures. It serves as a fundamental building block in the study of coordination chemistry and is often utilized in the synthesis of specialized beryllium-containing materials.
What is BeF4 used for?
What is the band gap of BeF4?
Is BeF4 a metal, semiconductor, or insulator?
Is BeF4 thermodynamically stable?
What is the crystal structure of BeF4?
What is the density of BeF4?
How many polymorphs of BeF4 are known?
What elements does BeF4 contain?
Where does the data for BeF4 come from?
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- alexandria — Data from alexandria.
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