H2I2O8Zn2
H2I2O8Zn2 is a metastable, insulating inorganic compound consisting of hydrogen, iodine, oxygen, and zinc.
About H2I2O8Zn2
H2I2O8Zn2 is a complex inorganic compound composed of hydrogen, iodine, oxygen, and zinc. As a wide-band-gap insulator, it exhibits electronic characteristics typical of materials that do not readily conduct electricity under standard conditions.
This material is classified as metastable, indicating that it exists in a state that is not the absolute thermodynamic ground state. Its structural rarity is highlighted by its limited presence in current materials databases, making it a subject of interest for fundamental solid-state research.
Key Properties
Cross-validated computational properties for H2I2O8Zn2, 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 H2I2O8Zn2, 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. |
|---|---|---|---|---|---|
| Cc (No. 9) | monoclinic | 3.69 | 0.0411 | -4.879 | 4.14 |
| Cc (No. 9) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 1.28 |
Frequently Asked Questions
Common questions about H2I2O8Zn2, answered from cross-validated data.
What is H2I2O8Zn2?
H2I2O8Zn2 is a metastable, insulating inorganic compound consisting of hydrogen, iodine, oxygen, and zinc.
What is the band gap of H2I2O8Zn2?
Is H2I2O8Zn2 a metal, semiconductor, or insulator?
Is H2I2O8Zn2 thermodynamically stable?
What is the crystal structure of H2I2O8Zn2?
What is the density of H2I2O8Zn2?
How many polymorphs of H2I2O8Zn2 are known?
What elements does H2I2O8Zn2 contain?
Where does the data for H2I2O8Zn2 come from?
How It Compares
As a unique inorganic phase, H2I2O8Zn2 occupies a specialized niche within materials science. Unlike more common, highly stable oxides or halides, this compound represents a metastable configuration that provides researchers with insights into the complex interplay between zinc-oxygen frameworks and iodine-containing species.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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