SnBr2
Tin(II) bromide · Stannous bromide
Tin(II) bromide is a crystalline inorganic compound that functions as a source of tin in various chemical processes. It is primarily utilized as a catalyst in organic synthesis and as a precursor for the preparation of other tin-containing materials.
Key Properties
Cross-validated computational properties for Tin(II) 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 SnBr2, 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 | 2.54 | 0.0000 | -3.601 | 4.65 |
| P63/m (No. 176) | hexagonal | 2.42 | 0.0019 | -3.599 | 4.55 |
| P-3m1 (No. 164) | trigonal | 0.00 | 0.0374 | -3.564 | 4.34 |
| P42/mnm (No. 136) | tetragonal | 1.66 | 0.0405 | -3.561 | 4.21 |
| P1 (No. 1) | Triclinic | — | — | — | 6.71 |
| P63/m (No. 176) | Hexagonal | — | — | — | 4.58 |
| P63/m (No. 176) | Hexagonal | — | — | — | 4.69 |
| P21/m (No. 11) | Monoclinic | — | — | — | 7.83 |
| P-1 (No. 2) | Triclinic | — | — | — | 2.90 |
| Cm (No. 8) | Monoclinic | — | — | — | 8.88 |
| Pm (No. 6) | Monoclinic | — | — | — | 3.47 |
| P21 (No. 4) | Monoclinic | — | — | — | 4.70 |
Applications
Where Tin(II) bromide is used.
Frequently Asked Questions
Common questions about Tin(II) bromide, answered from cross-validated data.
What is SnBr2?
Tin(II) bromide is a crystalline inorganic compound that functions as a source of tin in various chemical processes. It is primarily utilized as a catalyst in organic synthesis and as a precursor for the preparation of other tin-containing materials.
What is SnBr2 used for?
What is the band gap of SnBr2?
Is SnBr2 a metal, semiconductor, or insulator?
Is SnBr2 thermodynamically stable?
What is the crystal structure of SnBr2?
What is the density of SnBr2?
How many polymorphs of SnBr2 are known?
What elements does SnBr2 contain?
Where does the data for SnBr2 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.
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