SrO3
Strontium trioxide is a highly unstable and reactive inorganic compound containing strontium and oxygen. It is primarily studied in the context of high-pressure physics and theoretical chemistry to understand the bonding behavior of alkaline earth metal oxides.
Key Properties
Cross-validated computational properties for SrO3, aggregated across 2 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 SrO3, 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. |
|---|---|---|---|---|---|
| Pmc21 (No. 26) | orthorhombic | 0.47 | 0.3601 | -5.427 | 4.11 |
| C2/m (No. 12) | Monoclinic | — | — | — | 2.12 |
| P-1 (No. 2) | Triclinic | — | — | — | 4.27 |
| P-1 (No. 2) | Triclinic | — | — | — | 3.92 |
| C2 (No. 5) | Monoclinic | — | — | — | 1.92 |
| Cmmm (No. 65) | Orthorhombic | — | — | — | 2.04 |
| Cmmm (No. 65) | Orthorhombic | — | — | — | 2.60 |
| C2/m (No. 12) | Monoclinic | — | — | — | 6.59 |
| C2/m (No. 12) | Monoclinic | — | — | — | 2.44 |
| C2 (No. 5) | Monoclinic | — | — | — | 2.45 |
| C2 (No. 5) | Monoclinic | — | — | — | 6.41 |
| Pmmn (No. 59) | Orthorhombic | — | — | — | 4.29 |
Applications
Where SrO3 is used.
Frequently Asked Questions
Common questions about SrO3, answered from cross-validated data.
What is SrO3?
Strontium trioxide is a highly unstable and reactive inorganic compound containing strontium and oxygen. It is primarily studied in the context of high-pressure physics and theoretical chemistry to understand the bonding behavior of alkaline earth metal oxides.
What is SrO3 used for?
What is the band gap of SrO3?
Is SrO3 a metal, semiconductor, or insulator?
Is SrO3 thermodynamically stable?
What is the crystal structure of SrO3?
What is the density of SrO3?
How many polymorphs of SrO3 are known?
What elements does SrO3 contain?
Where does the data for SrO3 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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