VBr3
Vanadium(III) bromide · Vanadium tribromide
Vanadium(III) bromide is a stable, semiconducting halide compound primarily utilized as a chemical reagent and synthetic precursor.
About Vanadium(III) bromide
Vanadium(III) bromide is a stable inorganic compound composed of vanadium and bromine. As a semiconducting material, it serves as an important precursor in the synthesis of various vanadium-based complexes and organometallic compounds. Its thermodynamic stability ensures consistent performance in laboratory settings where controlled chemical reactions are required. The material is characterized by a significant degree of structural diversity, as evidenced by the numerous crystalline forms documented across multiple research databases. This structural variety makes it a subject of interest for those studying halide chemistry and coordination compounds.
Key Properties
Cross-validated computational properties for Vanadium(III) bromide, 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 VBr3, 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. |
|---|---|---|---|---|---|
| Ama2 (No. 40) | orthorhombic | 0.68 | 0.0000 | -14.506 | 3.36 |
| P63/mmc (No. 194) | hexagonal | 0.00 | 0.0000 | -4.678 | 3.35 |
| Cmcm (No. 63) | orthorhombic | 0.66 | 0.0001 | -14.506 | 3.36 |
| Cm (No. 8) | Monoclinic | — | — | — | 3.97 |
| P63/mmc (No. 194) | Hexagonal | — | — | — | 3.37 |
| P63/mmc (No. 194) | Hexagonal | — | — | — | 3.37 |
| P63/mmc (No. 194) | Hexagonal | — | — | — | 3.35 |
| P21/m (No. 11) | Monoclinic | — | — | — | 3.58 |
| P21/m (No. 11) | Monoclinic | — | — | — | 4.70 |
| P21/m (No. 11) | Monoclinic | — | — | — | 7.71 |
| C2/m (No. 12) | Monoclinic | — | — | — | 3.67 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 4.99 |
Applications
Where Vanadium(III) bromide is used.
Frequently Asked Questions
Common questions about Vanadium(III) bromide, answered from cross-validated data.
What is VBr3?
Vanadium(III) bromide is a stable, semiconducting halide compound primarily utilized as a chemical reagent and synthetic precursor.
What is VBr3 used for?
What is the band gap of VBr3?
Is VBr3 a metal, semiconductor, or insulator?
Is VBr3 thermodynamically stable?
What is the crystal structure of VBr3?
What is the density of VBr3?
How many polymorphs of VBr3 are known?
What elements does VBr3 contain?
Where does the data for VBr3 come from?
How It Compares
As a primary vanadium halide, this compound serves as a fundamental building block in the broader class of transition metal bromides. It acts as a key reference point for understanding the reactivity and electronic behavior of trivalent vanadium species in solid-state and solution-phase chemistry.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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