CrPO5
Chromium(V) phosphate is an inorganic compound containing chromium in a high oxidation state. It is primarily studied for its structural properties and potential roles in catalytic processes or as a precursor for specialized ceramic materials.
Key Properties
Cross-validated computational properties for CrPO5, 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 CrPO5, 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. |
|---|---|---|---|---|---|
| P4/n (No. 85) | tetragonal | 1.75 | 0.0431 | -7.869 | 3.00 |
| Pnma (No. 62) | orthorhombic | 1.51 | 0.0477 | -7.864 | 3.05 |
| P-1 (No. 2) | triclinic | 1.62 | 0.0514 | -7.861 | 3.06 |
| Cc (No. 9) | monoclinic | 1.27 | 0.0594 | -7.853 | 3.03 |
| P-1 (No. 2) | triclinic | 1.05 | 0.0677 | -7.844 | 2.84 |
| P21/c (No. 14) | monoclinic | 0.22 | 0.1004 | -7.812 | 3.05 |
| Fdd2 (No. 43) | orthorhombic | 0.56 | 0.1426 | -7.770 | 3.27 |
| P-1 (No. 2) | triclinic | 0.00 | 3.9349 | -3.977 | 2.84 |
| Fdd2 (No. 43) | Orthorhombic | — | — | — | 3.27 |
| P1 (No. 1) | — | — | — | — | — |
| Cc (No. 9) | Monoclinic | — | — | — | 3.10 |
| Fdd2 (No. 43) | Orthorhombic | — | — | — | 3.58 |
Applications
Where CrPO5 is used.
Frequently Asked Questions
Common questions about CrPO5, answered from cross-validated data.
What is CrPO5?
Chromium(V) phosphate is an inorganic compound containing chromium in a high oxidation state. It is primarily studied for its structural properties and potential roles in catalytic processes or as a precursor for specialized ceramic materials.
What is CrPO5 used for?
What is the band gap of CrPO5?
Is CrPO5 a metal, semiconductor, or insulator?
Is CrPO5 thermodynamically stable?
What is the crystal structure of CrPO5?
What is the density of CrPO5?
How many polymorphs of CrPO5 are known?
What elements does CrPO5 contain?
Where does the data for CrPO5 come from?
Related Compounds
Other Transition-Metal Phosphates in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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