V2MoO8
V2MoO8 is a semiconducting ternary oxide of vanadium and molybdenum that exhibits significant structural diversity and potential for experimental synthesis.
About V2MoO8
V2MoO8 is a complex ternary oxide composed of vanadium, molybdenum, and oxygen. As a semiconducting material, it represents an interesting candidate for research into functional oxides where the interplay between transition metal oxidation states dictates electronic behavior. Its structural complexity is evidenced by its presence in multiple crystallographic databases, reflecting a rich landscape of potential atomic arrangements.
This compound is considered near-hull in terms of thermodynamic stability, suggesting it is a viable target for experimental synthesis. Its ability to adopt various structures makes it a compelling subject for materials scientists investigating how stoichiometry and structural geometry influence the semiconducting properties of mixed-metal oxides.
Key Properties
Cross-validated computational properties for V2MoO8, 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 V2MoO8. 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 V2MoO8, 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. |
|---|---|---|---|---|---|
| Cm (No. 8) | monoclinic | 1.41 | 0.0151 | -8.378 | 3.76 |
| Cmm2 (No. 35) | orthorhombic | 1.34 | 0.0296 | -8.363 | 3.47 |
| Cmm2 (No. 35) | orthorhombic | 0.72 | 0.0314 | -2.264 | — |
| Cmm2 (No. 35) | orthorhombic | 0.73 | 0.0317 | -2.264 | — |
| Cm (No. 8) | monoclinic | 1.00 | 0.0382 | -2.257 | — |
| C2/m (No. 12) | monoclinic | 0.08 | 0.0522 | -8.340 | 3.76 |
| — | — | 0.00 | 0.0523 | -2.175 | — |
| C2/m (No. 12) | monoclinic | 0.00 | 0.0531 | -2.242 | — |
| Cm (No. 8) | monoclinic | — | — | — | 3.53 |
| Cm (No. 8) | monoclinic | — | — | — | 3.62 |
| Cm (No. 8) | monoclinic | — | — | — | 3.94 |
| Cmm2 (No. 35) | orthorhombic | — | — | — | 3.88 |
Synthesis Routes
Literature-extracted synthesis procedures targeting V2MoO8.
Applications
Where V2MoO8 is used.
Frequently Asked Questions
Common questions about V2MoO8, answered from cross-validated data.
What is V2MoO8?
V2MoO8 is a semiconducting ternary oxide of vanadium and molybdenum that exhibits significant structural diversity and potential for experimental synthesis.
What is V2MoO8 used for?
What is the band gap of V2MoO8?
Is V2MoO8 a metal, semiconductor, or insulator?
Is V2MoO8 thermodynamically stable?
What is the crystal structure of V2MoO8?
What is the density of V2MoO8?
How many polymorphs of V2MoO8 are known?
How is V2MoO8 synthesized?
What elements does V2MoO8 contain?
Where does the data for V2MoO8 come from?
How It Compares
As a unique ternary oxide, V2MoO8 occupies a specialized niche within the broader family of vanadium-molybdenum-oxygen systems. While many binary oxides in this class are well-characterized, V2MoO8 stands out for its structural versatility and its role as a stable, synthesizable bridge between simpler transition metal oxides, offering a distinct electronic profile that warrants further exploration in solid-state chemistry.
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)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
- cod — Data from the Crystallography Open Database (crystallography.net/cod/). Cite: Grazulis et al., J. Appl. Cryst. 42, 726 (2009). (CC0-1.0)
Analyze V2MoO8 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 85 source databases.
Explore the Platform →