CsI2Rb
CsI2Rb is a wide-band-gap insulating compound composed of cesium, rubidium, and iodine that exists in a metastable state.
About CsI2Rb
CsI2Rb is an insulating compound characterized by a wide electronic band gap. It is composed of cesium, rubidium, and iodine, forming a complex lattice structure that has been documented across multiple crystallographic databases.
Due to its position above the thermodynamic hull, this material is considered metastable. Its study provides valuable insights into the structural diversity of alkali metal halides and the potential for complex phase formation in these systems.
Key Properties
Cross-validated computational properties for CsI2Rb, 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.
Frequently Asked Questions
Common questions about CsI2Rb, answered from cross-validated data.
What is CsI2Rb?
CsI2Rb is a wide-band-gap insulating compound composed of cesium, rubidium, and iodine that exists in a metastable state.
What is the band gap of CsI2Rb?
Is CsI2Rb a metal, semiconductor, or insulator?
Is CsI2Rb thermodynamically stable?
How many polymorphs of CsI2Rb are known?
What elements does CsI2Rb contain?
Where does the data for CsI2Rb come from?
How It Compares
As a member of the alkali metal halide family, CsI2Rb represents a unique combination of large cations and halide anions. Unlike simpler binary halides that often exhibit high thermodynamic stability, this ternary compound occupies a more complex region of the phase space, reflecting the intricate interplay between ionic sizes and lattice energy.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
Analyze CsI2Rb in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →