RbInS2
RbInS2 is a thermodynamically stable semiconducting sulfide compound.
About RbInS2
RbInS2 is a ternary sulfide compound characterized by its semiconducting electronic nature. As a thermodynamically stable phase residing on the convex hull, it represents a robust material choice for research into complex inorganic sulfides.
Its structural versatility is evidenced by multiple reported configurations across various databases. This stability and electronic profile make it a compelling candidate for fundamental studies in solid-state chemistry and materials science.
Key Properties
Cross-validated computational properties for RbInS2, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of RbInS2. 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 RbInS2, 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. |
|---|---|---|---|---|---|
| — | — | 2.29 | 0.0000 | -1.104 | — |
| C2/c (No. 15) | monoclinic | 2.10 | 0.0000 | -4.197 | 3.63 |
| — | — | 1.93 | 0.0967 | -1.007 | — |
| P4mm (No. 99) | tetragonal | 0.00 | 0.3005 | -0.687 | — |
| C2/c (No. 15) | monoclinic | — | — | — | 3.74 |
| C2/c (No. 15) | monoclinic | — | — | — | 3.64 |
| C2/c (No. 15) | monoclinic | — | — | — | 3.52 |
| C2/c (No. 15) | monoclinic | — | — | — | 3.61 |
Applications
Where RbInS2 is used.
Frequently Asked Questions
Common questions about RbInS2, answered from cross-validated data.
What is RbInS2?
RbInS2 is a thermodynamically stable semiconducting sulfide compound.
What is RbInS2 used for?
What is the band gap of RbInS2?
Is RbInS2 a metal, semiconductor, or insulator?
Is RbInS2 thermodynamically stable?
What is the crystal structure of RbInS2?
What is the density of RbInS2?
How many polymorphs of RbInS2 are known?
What elements does RbInS2 contain?
Where does the data for RbInS2 come from?
How It Compares
As a distinct ternary sulfide, RbInS2 serves as a foundational example of this material class, offering a stable framework for investigating how alkali metal and indium coordination influences semiconducting behavior.
Data sources & attribution
- 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)
- 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)
- cod — Data from the Crystallography Open Database (crystallography.net/cod/). Cite: Grazulis et al., J. Appl. Cryst. 42, 726 (2009). (CC0-1.0)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
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