CSN
CSN is a metastable, semiconducting ternary compound composed of carbon, nitrogen, and sulfur.
About CSN
CSN is a ternary compound composed of carbon, sulfur, and nitrogen. As a semiconducting material, it represents a niche area of study within inorganic chemistry, characterized by its electronic properties that bridge the gap between conductive and insulating states.
Because this compound is situated above the thermodynamic hull, it is considered a metastable phase. Its existence in multiple reported structures suggests that while it may be difficult to synthesize or maintain under standard conditions, it remains a subject of interest for fundamental materials research.
Key Properties
Cross-validated computational properties for CSN, 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 CSN, 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. |
|---|---|---|---|---|---|
| P21/c (No. 14) | monoclinic | 0.63 | 0.4450 | -8.410 | 1.80 |
| Pm (No. 6) | — | — | — | — | — |
| Pnma (No. 62) | orthorhombic | — | — | — | 0.27 |
| P4mm (No. 99) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 0.27 |
Frequently Asked Questions
Common questions about CSN, answered from cross-validated data.
What is CSN?
CSN is a metastable, semiconducting ternary compound composed of carbon, nitrogen, and sulfur.
What is the band gap of CSN?
Is CSN a metal, semiconductor, or insulator?
Is CSN thermodynamically stable?
What is the crystal structure of CSN?
What is the density of CSN?
How many polymorphs of CSN are known?
What elements does CSN contain?
Where does the data for CSN come from?
How It Compares
As a unique ternary system, CSN does not currently have a broad family of closely related siblings in this specific class, making its behavior distinct within the landscape of carbon-sulfur-nitrogen compounds.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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