Br2Li2
Lithium bromide · LiBr
Lithium bromide is a stable, insulating salt widely used for its powerful moisture-absorbing capabilities in industrial cooling and drying applications.
About Lithium bromide
Lithium bromide is a highly stable inorganic salt characterized by its wide-band-gap insulating electronic structure. Its position on the convex hull ensures robust thermodynamic stability, making it a reliable material for high-performance chemical applications.
Due to its exceptional hygroscopic properties, this compound is primarily utilized in industrial cooling and dehumidification systems. Its ability to effectively manage moisture levels in controlled environments highlights its importance in modern thermal management and chemical engineering.
Key Properties
Cross-validated computational properties for Lithium bromide, aggregated across 5 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 Br2Li2, 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. |
|---|---|---|---|---|---|
| P63mc (No. 186) | hexagonal | 4.93 | 0.0000 | -3.609 | 2.90 |
| Fm-3m (No. 225) | cubic | 4.92 | 0.0099 | -3.599 | 3.57 |
| Pmma (No. 51) | — | — | — | — | — |
| I41/amd (No. 141) | — | — | — | — | — |
| I41/amd (No. 141) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 0.86 |
| — | — | — | — | — | 3.41 |
| Fd-3m (No. 227) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
| P21/m (No. 11) | — | — | — | — | — |
| P4/nmm (No. 129) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
Applications
Where Lithium bromide is used.
Frequently Asked Questions
Common questions about Lithium bromide, answered from cross-validated data.
What is Br2Li2?
Lithium bromide is a stable, insulating salt widely used for its powerful moisture-absorbing capabilities in industrial cooling and drying applications.
What is Br2Li2 used for?
What is the band gap of Br2Li2?
Is Br2Li2 a metal, semiconductor, or insulator?
Is Br2Li2 thermodynamically stable?
What is the crystal structure of Br2Li2?
What is the density of Br2Li2?
How many polymorphs of Br2Li2 are known?
What elements does Br2Li2 contain?
Where does the data for Br2Li2 come from?
How It Compares
As a fundamental halide salt, lithium bromide serves as a standard reference point for high-stability insulating materials within its chemical family, demonstrating the characteristic ionic bonding and wide-gap behavior expected of alkali metal halides.
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).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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