LaSO5
LaSO5 is a semiconducting lanthanum sulfur oxide that exists in multiple structural forms despite being thermodynamically unstable.
About LaSO5
LaSO5 is a complex inorganic compound composed of lanthanum, sulfur, and oxygen. As a semiconducting material, it represents a specialized chemical system that has been documented across multiple structural databases, reflecting a significant interest in its atomic configuration and potential electronic behavior.
While this compound is currently classified as thermodynamically unstable relative to its constituent phases, its existence in various structural forms suggests a complex energy landscape. It serves as an intriguing subject for materials scientists studying the interplay between rare-earth elements and chalcogen-oxygen frameworks.
Key Properties
Cross-validated computational properties for LaSO5, aggregated across 4 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 LaSO5, 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 | 0.79 | 0.1197 | -7.351 | 4.27 |
| P21/c (No. 14) | — | — | — | — | — |
| P21/c (No. 14) | Monoclinic | — | — | — | 4.21 |
| P21/c (No. 14) | Monoclinic | — | — | — | 4.14 |
| P21/c (No. 14) | Monoclinic | — | — | — | 4.37 |
| No. 0 | unknown | — | — | — | 0.97 |
Frequently Asked Questions
Common questions about LaSO5, answered from cross-validated data.
What is LaSO5?
LaSO5 is a semiconducting lanthanum sulfur oxide that exists in multiple structural forms despite being thermodynamically unstable.
What is the band gap of LaSO5?
Is LaSO5 a metal, semiconductor, or insulator?
Is LaSO5 thermodynamically stable?
What is the crystal structure of LaSO5?
What is the density of LaSO5?
How many polymorphs of LaSO5 are known?
What elements does LaSO5 contain?
Where does the data for LaSO5 come from?
How It Compares
As a unique entry in the landscape of lanthanum sulfur oxides, LaSO5 occupies a distinct position where its structural diversity is balanced against its thermodynamic metastability, providing researchers with a challenging case study in phase formation.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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