H7NF4
H7NF4 is a stable, insulating hydride compound being researched for its potential role in hydrogen storage technologies.
About H7NF4
H7NF4 is a complex hydrogen storage hydride characterized by its insulating electronic nature and high thermodynamic stability. Positioned on the convex hull, this compound represents a stable chemical state within the nitrogen-fluorine-hydrogen system, making it a focus for structural analysis in materials science.
Its role as a wide-band-gap insulator distinguishes it from metallic hydrides, suggesting unique pathways for hydrogen release and uptake. Researchers study this compound to understand how its specific atomic arrangement contributes to its stability and potential utility in hydrogen-based energy applications.
Key Properties
Cross-validated computational properties for H7NF4, 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 H7NF4, 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. |
|---|---|---|---|---|---|
| R3c (No. 161) | trigonal | 7.27 | 0.0000 | -4.778 | 1.63 |
| R3c (No. 161) | — | — | — | — | — |
| R3c (No. 161) | Trigonal | — | — | — | 1.49 |
| R3c (No. 161) | Trigonal | — | — | — | 1.48 |
| R3c (No. 161) | Trigonal | — | — | — | 1.52 |
Applications
Where H7NF4 is used.
Frequently Asked Questions
Common questions about H7NF4, answered from cross-validated data.
What is H7NF4?
H7NF4 is a stable, insulating hydride compound being researched for its potential role in hydrogen storage technologies.
What is H7NF4 used for?
What is the band gap of H7NF4?
Is H7NF4 a metal, semiconductor, or insulator?
Is H7NF4 thermodynamically stable?
What is the crystal structure of H7NF4?
What is the density of H7NF4?
How many polymorphs of H7NF4 are known?
What elements does H7NF4 contain?
Where does the data for H7NF4 come from?
How It Compares
Within the hydrogen storage hydrides class.
Unlike traditional binary metal hydrides such as MgH2, CaH2, or LiH, which are widely utilized for their reversible hydrogen capacity, H7NF4 represents a more complex, multi-elemental approach to hydrogen storage. While simpler hydrides like BH3 or AlH3 are frequently investigated for their high gravimetric density, H7NF4 offers a distinct structural profile that complements the broader class of hydrogen-rich compounds.
Related Compounds
Other Hydrogen Storage Hydrides in the database.
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).
- mpaloe — Data from mpaloe.
Analyze H7NF4 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →