SnBr4
Tin(IV) bromide · Stannic bromide
Tin(IV) bromide is a colorless, crystalline inorganic compound that fumes in moist air. It is primarily utilized as a chemical reagent in organic synthesis and as a catalyst in various chemical reactions.
BrSn
Overview
Key Properties
Cross-validated computational properties for Tin(IV) 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.
2.71 eV
Range across DFT structures
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.
0.000 eV/atom
Best (lowest) across sources
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.
On hull (stable)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
14
3 databases, 4 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for SnBr4, 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. |
|---|---|---|---|---|---|
| P21/c (No. 14) | monoclinic | 2.71 | 0.0000 | -3.229 | 3.68 |
| Cm (No. 8) | Monoclinic | — | — | — | 4.73 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.46 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.48 |
| C2/m (No. 12) | Monoclinic | — | — | — | 9.38 |
| C2/m (No. 12) | Monoclinic | — | — | — | 3.92 |
| C2/m (No. 12) | Monoclinic | — | — | — | 5.57 |
| P21/c (No. 14) | Monoclinic | — | — | — | 3.12 |
| P21/c (No. 14) | — | — | — | — | — |
| P4mm (No. 99) | Tetragonal | — | — | — | 4.62 |
| P4mm (No. 99) | Tetragonal | — | — | — | 5.40 |
| P21/c (No. 14) | Monoclinic | — | — | — | 3.07 |
Uses
Applications
Where Tin(IV) bromide is used.
Organic synthesisChemical catalysisLaboratory reagent
Reference
Frequently Asked Questions
Common questions about Tin(IV) bromide, answered from cross-validated data.
What is SnBr4?
Tin(IV) bromide is a colorless, crystalline inorganic compound that fumes in moist air. It is primarily utilized as a chemical reagent in organic synthesis and as a catalyst in various chemical reactions.
More questions
What is SnBr4 used for?
Tin(IV) bromide (SnBr4) is used in organic synthesis, chemical catalysis, and laboratory reagent.
What is the band gap of SnBr4?
Tin(IV) bromide (SnBr4) has a DFT-computed band gap of 2.71 eV across 14 reported structures.
Is SnBr4 a metal, semiconductor, or insulator?
With a band gap up to 2.71 eV it is a semiconductor.
Is SnBr4 thermodynamically stable?
Yes — Tin(IV) bromide (SnBr4) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of SnBr4?
The lowest-energy reported polymorph of Tin(IV) bromide (SnBr4) is monoclinic symmetry, space group P21/c (No. 14).
What is the density of SnBr4?
The computed density of the ground-state structure of Tin(IV) bromide (SnBr4) is 3.68 g/cm³.
How many polymorphs of SnBr4 are known?
14 structures of SnBr4 are reported across 3 databases, spanning 4 distinct space groups.
What elements does SnBr4 contain?
Tin(IV) bromide (SnBr4) contains Br and Sn (2 elements).
Where does the data for SnBr4 come from?
SnBr4 data is cross-referenced from materials_project, mpaloe, jarvis.
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).
Analyze SnBr4 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →