Ca2H24O18S4
Ca2H24O18S4 is a metastable, insulating inorganic compound composed of calcium, sulfur, oxygen, and hydrogen.
About Ca2H24O18S4
Ca2H24O18S4 is a complex inorganic compound characterized by its wide-band-gap insulating electronic profile. Its structural arrangement reflects a delicate balance of constituent elements, positioning it as a distinct entity within its chemical family.
As a metastable material, it represents a specific configuration that is of interest for fundamental structural studies. Its insulating nature suggests potential utility in specialized dielectric applications where electronic conductivity must be strictly limited.
Key Properties
Cross-validated computational properties for Ca2H24O18S4, 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 Ca2H24O18S4, 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. |
|---|---|---|---|---|---|
| P-1 (No. 2) | triclinic | 4.13 | 0.0532 | -5.439 | 1.86 |
| No. 0 | unknown | — | — | — | 0.94 |
| P-1 (No. 2) | — | — | — | — | — |
Frequently Asked Questions
Common questions about Ca2H24O18S4, answered from cross-validated data.
What is Ca2H24O18S4?
Ca2H24O18S4 is a metastable, insulating inorganic compound composed of calcium, sulfur, oxygen, and hydrogen.
What is the band gap of Ca2H24O18S4?
Is Ca2H24O18S4 a metal, semiconductor, or insulator?
Is Ca2H24O18S4 thermodynamically stable?
What is the crystal structure of Ca2H24O18S4?
What is the density of Ca2H24O18S4?
How many polymorphs of Ca2H24O18S4 are known?
What elements does Ca2H24O18S4 contain?
Where does the data for Ca2H24O18S4 come from?
How It Compares
As a unique entry in this chemical space, Ca2H24O18S4 serves as a reference point for understanding the structural diversity of calcium-sulfur-oxygen-hydrogen systems. It stands as a specialized material whose metastable nature distinguishes it from more common, highly stable mineral phases.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
Analyze Ca2H24O18S4 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →