Cd2Cu2F8
Cd2Cu2F8 is a stable, semiconducting inorganic fluoride compound composed of cadmium, copper, and fluorine.
About Cd2Cu2F8
Cd2Cu2F8 is a distinct inorganic fluoride compound characterized by its semiconducting electronic nature. As a thermodynamically stable phase residing on the convex hull, it represents a robust crystalline arrangement of cadmium, copper, and fluorine atoms.
This material is of interest to researchers investigating the interplay between transition metal centers and halide lattices. Its stability suggests potential for integration into specialized electronic or optical systems where specific band structures are required.
Key Properties
Cross-validated computational properties for Cd2Cu2F8, 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 Cd2Cu2F8, 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. |
|---|---|---|---|---|---|
| I4/mcm (No. 140) | tetragonal | 0.73 | 0.0000 | -9.393 | 5.70 |
| — | — | — | — | — | 5.43 |
| I4/mcm (No. 140) | — | — | — | — | — |
Applications
Where Cd2Cu2F8 is used.
Frequently Asked Questions
Common questions about Cd2Cu2F8, answered from cross-validated data.
What is Cd2Cu2F8?
Cd2Cu2F8 is a stable, semiconducting inorganic fluoride compound composed of cadmium, copper, and fluorine.
What is Cd2Cu2F8 used for?
What is the band gap of Cd2Cu2F8?
Is Cd2Cu2F8 a metal, semiconductor, or insulator?
Is Cd2Cu2F8 thermodynamically stable?
What is the crystal structure of Cd2Cu2F8?
What is the density of Cd2Cu2F8?
How many polymorphs of Cd2Cu2F8 are known?
What elements does Cd2Cu2F8 contain?
Where does the data for Cd2Cu2F8 come from?
How It Compares
As a unique member of its chemical class, Cd2Cu2F8 serves as a foundational example of a stable ternary fluoride. It provides a baseline for understanding how the combination of cadmium and copper within a fluorinated framework influences electronic behavior in the absence of more common structural analogs.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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