Cl10Pa2
Cl10Pa2 is a stable semiconducting compound formed from protactinium and chlorine.
About Cl10Pa2
Cl10Pa2 is a distinct binary halide compound composed of protactinium and chlorine. As a thermodynamically stable phase residing on the convex hull, it represents a well-defined structural arrangement within the actinide chloride family.
This material exhibits semiconducting electronic characteristics, making it a subject of interest for fundamental studies into the electronic structure of heavy elements. Its stability and structural data availability highlight its importance in understanding the coordination chemistry of protactinium.
Key Properties
Cross-validated computational properties for Cl10Pa2, 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 Cl10Pa2, 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. |
|---|---|---|---|---|---|
| C2/c (No. 15) | monoclinic | 2.42 | 0.0000 | -19.956 | 3.52 |
| C2/c (No. 15) | — | — | — | — | — |
| — | — | — | — | — | 3.57 |
| — | — | — | — | — | 4.01 |
Applications
Where Cl10Pa2 is used.
Frequently Asked Questions
Common questions about Cl10Pa2, answered from cross-validated data.
What is Cl10Pa2?
Cl10Pa2 is a stable semiconducting compound formed from protactinium and chlorine.
What is Cl10Pa2 used for?
What is the band gap of Cl10Pa2?
Is Cl10Pa2 a metal, semiconductor, or insulator?
Is Cl10Pa2 thermodynamically stable?
What is the crystal structure of Cl10Pa2?
What is the density of Cl10Pa2?
How many polymorphs of Cl10Pa2 are known?
What elements does Cl10Pa2 contain?
Where does the data for Cl10Pa2 come from?
How It Compares
As a unique binary actinide halide, Cl10Pa2 serves as a foundational reference point for studying the bonding and electronic behavior of protactinium in high-oxidation-state chloride environments.
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).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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