C2F
C2F is a metastable, semiconducting compound consisting of carbon and fluorine atoms.
About C2F
C2F is a semiconducting material composed of carbon and fluorine. Its electronic properties suggest potential utility in specialized electronic components where carbon-based architectures are required.
Because it exists above the thermodynamic hull, it is considered a metastable phase. This status makes it a subject of significant interest for researchers investigating synthetic pathways to stabilize novel carbon-fluorine frameworks.
Key Properties
Cross-validated computational properties for C2F, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of C2F. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for C2F, 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. |
|---|---|---|---|---|---|
| R-3 (No. 148) | trigonal | 2.08 | 0.2454 | -7.455 | 2.11 |
| C2/m (No. 12) | monoclinic | 0.00 | 0.6749 | -0.083 | — |
| — | — | 0.00 | 3.5601 | 2.700 | — |
| — | — | 0.00 | 3.6956 | 2.836 | — |
| — | — | 0.00 | 4.5459 | 3.686 | — |
| — | — | 0.00 | 4.9582 | 4.098 | — |
| P21/c (No. 14) | monoclinic | — | — | — | 2.06 |
| Pbca (No. 61) | orthorhombic | — | — | — | 2.04 |
| P21/c (No. 14) | monoclinic | — | — | — | 1.89 |
| R-3 (No. 148) | trigonal | — | — | — | 2.13 |
Applications
Where C2F is used.
Frequently Asked Questions
Common questions about C2F, answered from cross-validated data.
What is C2F?
C2F is a metastable, semiconducting compound consisting of carbon and fluorine atoms.
What is C2F used for?
What is the band gap of C2F?
Is C2F a metal, semiconductor, or insulator?
Is C2F thermodynamically stable?
What is the crystal structure of C2F?
What is the density of C2F?
How many polymorphs of C2F are known?
What elements does C2F contain?
Where does the data for C2F come from?
How It Compares
As a unique carbon-fluorine compound, C2F represents a specialized entry in the broader landscape of fluorinated carbon materials, serving as a distinct structural variant compared to more common fluorocarbons.
Data sources & attribution
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- cod — Data from the Crystallography Open Database (crystallography.net/cod/). Cite: Grazulis et al., J. Appl. Cryst. 42, 726 (2009). (CC0-1.0)
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