Rb2Te5
Rubidium pentatelluride is a binary inorganic compound composed of rubidium and tellurium. It belongs to the class of alkali metal polychalcogenides and is primarily studied in solid-state chemistry for its unique structural properties and electronic behavior.
RbTe
Overview
Key Properties
Cross-validated computational properties for Rb2Te5, aggregated across 5 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.
0.24 eV
Range across DFT structures
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.
0.145 eV/atom
Best (lowest) across sources
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.
Above hull
4 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
10
5 databases, 2 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Rb2Te5, 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/m (No. 12) | monoclinic | 0.24 | 0.1451 | -3.065 | 4.77 |
| C2/m (No. 12) | — | — | — | — | — |
| C2/m (No. 12) | Monoclinic | — | — | — | 2.62 |
| C2/m (No. 12) | — | — | — | — | — |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.77 |
| C2/m (No. 12) | Monoclinic | — | — | — | 2.42 |
| P-1 (No. 2) | Triclinic | — | — | — | 2.22 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.68 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.76 |
| — | — | — | — | — | 4.68 |
Uses
Applications
Where Rb2Te5 is used.
Solid-state researchMaterials science studiesPrecursor for specialized telluride materials
Reference
Frequently Asked Questions
Common questions about Rb2Te5, answered from cross-validated data.
What is Rb2Te5?
Rubidium pentatelluride is a binary inorganic compound composed of rubidium and tellurium. It belongs to the class of alkali metal polychalcogenides and is primarily studied in solid-state chemistry for its unique structural properties and electronic behavior.
More questions
What is Rb2Te5 used for?
Rb2Te5 is used in solid-state research, materials science studies, and precursor for specialized telluride materials.
What is the band gap of Rb2Te5?
Rb2Te5 has a DFT-computed band gap of 0.24 eV across 10 reported structures.
Is Rb2Te5 a metal, semiconductor, or insulator?
With a band gap up to 0.24 eV it is a semiconductor.
Is Rb2Te5 thermodynamically stable?
Rb2Te5 has a lowest energy above hull of 0.145 eV/atom (above hull).
What is the crystal structure of Rb2Te5?
The lowest-energy reported polymorph of Rb2Te5 is monoclinic symmetry, space group C2/m (No. 12).
What is the density of Rb2Te5?
The computed density of the ground-state structure of Rb2Te5 is 4.77 g/cm³.
How many polymorphs of Rb2Te5 are known?
10 structures of Rb2Te5 are reported across 5 databases, spanning 2 distinct space groups.
What elements does Rb2Te5 contain?
Rb2Te5 contains Rb and Te (2 elements).
Where does the data for Rb2Te5 come from?
Rb2Te5 data is cross-referenced from materials_project, aflow, mpaloe, jarvis, omat24.
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).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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