Hg2Sn1Sr1
Hg2Sn1Sr1 is a semiconducting ternary compound of mercury, tin, and strontium that exists in a metastable state.
About Hg2Sn1Sr1
Hg2Sn1Sr1 is a ternary compound composed of mercury, tin, and strontium. It exhibits semiconducting electronic properties, positioning it within a class of materials often investigated for potential optoelectronic or specialized electronic applications.
Despite its structural diversity, with numerous reported configurations across databases, this compound is characterized as being above the thermodynamic hull. This indicates that it is likely metastable under standard conditions, requiring specific synthesis pathways to stabilize its crystalline arrangement.
Key Properties
Cross-validated computational properties for Hg2Sn1Sr1, 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 Hg2Sn1Sr1, 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. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 0.20 | 1.2881 | -0.710 | 0.68 |
| P4/mmm (No. 123) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
Frequently Asked Questions
Common questions about Hg2Sn1Sr1, answered from cross-validated data.
What is Hg2Sn1Sr1?
Hg2Sn1Sr1 is a semiconducting ternary compound of mercury, tin, and strontium that exists in a metastable state.
What is the band gap of Hg2Sn1Sr1?
Is Hg2Sn1Sr1 a metal, semiconductor, or insulator?
Is Hg2Sn1Sr1 thermodynamically stable?
What is the crystal structure of Hg2Sn1Sr1?
What is the density of Hg2Sn1Sr1?
How many polymorphs of Hg2Sn1Sr1 are known?
What elements does Hg2Sn1Sr1 contain?
Where does the data for Hg2Sn1Sr1 come from?
How It Compares
As a unique ternary intermetallic phase, Hg2Sn1Sr1 represents a complex structural arrangement of heavy metal and alkaline earth components. Without direct structural siblings in its immediate class, it serves as an intriguing case study for the interplay between mercury-based bonding and structural instability in complex ternary systems.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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