Cd1Hg1Sr2
Cd1Hg1Sr2 is a semiconducting ternary intermetallic compound composed of cadmium, mercury, and strontium that is considered a promising candidate for laboratory synthesis.
About Cd1Hg1Sr2
Cd1Hg1Sr2 is a complex intermetallic compound composed of cadmium, mercury, and strontium. As a semiconducting material, it occupies a specialized niche in solid-state chemistry where electronic properties are dictated by the interplay of its constituent heavy metals and alkaline earth components.
This compound is considered near-hull in thermodynamic stability, suggesting that it is a viable candidate for experimental synthesis. With numerous reported structural configurations, it represents a significant subject for researchers investigating the phase space of ternary mercury-based alloys.
Key Properties
Cross-validated computational properties for Cd1Hg1Sr2, 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 Cd1Hg1Sr2, 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. |
|---|---|---|---|---|---|
| Fm-3m (No. 225) | cubic | 0.00 | 0.0089 | -1.570 | 6.29 |
| Immm (No. 71) | orthorhombic | 0.52 | 1.2729 | -0.306 | 0.44 |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Cm (No. 8) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
Applications
Where Cd1Hg1Sr2 is used.
Frequently Asked Questions
Common questions about Cd1Hg1Sr2, answered from cross-validated data.
What is Cd1Hg1Sr2?
Cd1Hg1Sr2 is a semiconducting ternary intermetallic compound composed of cadmium, mercury, and strontium that is considered a promising candidate for laboratory synthesis.
What is Cd1Hg1Sr2 used for?
What is the band gap of Cd1Hg1Sr2?
Is Cd1Hg1Sr2 a metal, semiconductor, or insulator?
Is Cd1Hg1Sr2 thermodynamically stable?
What is the crystal structure of Cd1Hg1Sr2?
What is the density of Cd1Hg1Sr2?
How many polymorphs of Cd1Hg1Sr2 are known?
What elements does Cd1Hg1Sr2 contain?
Where does the data for Cd1Hg1Sr2 come from?
How It Compares
As a unique ternary intermetallic, Cd1Hg1Sr2 serves as a foundational example of how mercury and cadmium can be integrated into strontium-based frameworks to tune electronic behavior, providing a distinct structural profile compared to simpler binary 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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