Sr4LaCl11
Sr4LaCl11 is a metastable semiconducting chloride compound composed of strontium, lanthanum, and chlorine.
About Sr4LaCl11
Sr4LaCl11 is a complex chloride compound characterized by its semiconducting electronic nature. As a metastable phase, it represents a unique structural arrangement of strontium, lanthanum, and chlorine atoms that requires specific synthesis conditions to stabilize.
Its existence within multiple structural databases highlights its significance in solid-state chemistry investigations. Researchers study this compound to better understand the interplay between rare-earth elements and alkaline earth halides in forming intricate crystalline frameworks.
Key Properties
Cross-validated computational properties for Sr4LaCl11, 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 Sr4LaCl11, 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. |
|---|---|---|---|---|---|
| P1 (No. 1) | triclinic | 2.31 | 0.0977 | -12.516 | 3.25 |
| I4/mmm (No. 139) | tetragonal | 1.87 | 0.1000 | -12.514 | 3.39 |
| P1 (No. 1) | Triclinic | — | — | — | 3.25 |
| P1 (No. 1) | Triclinic | — | — | — | 3.36 |
| P1 (No. 1) | Triclinic | — | — | — | 3.36 |
| I4/mmm (No. 139) | — | — | — | — | — |
Applications
Where Sr4LaCl11 is used.
Frequently Asked Questions
Common questions about Sr4LaCl11, answered from cross-validated data.
What is Sr4LaCl11?
Sr4LaCl11 is a metastable semiconducting chloride compound composed of strontium, lanthanum, and chlorine.
What is Sr4LaCl11 used for?
What is the band gap of Sr4LaCl11?
Is Sr4LaCl11 a metal, semiconductor, or insulator?
Is Sr4LaCl11 thermodynamically stable?
What is the crystal structure of Sr4LaCl11?
What is the density of Sr4LaCl11?
How many polymorphs of Sr4LaCl11 are known?
What elements does Sr4LaCl11 contain?
Where does the data for Sr4LaCl11 come from?
How It Compares
As a specialized chloride phase, Sr4LaCl11 occupies a distinct niche in materials science where its metastability makes it a subject of interest for fundamental structural studies rather than high-volume industrial applications. It serves as a representative example of how complex multi-cation halide systems can exhibit semiconducting behavior despite their unconventional stoichiometry.
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).
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