PI2
PI2 is a thermodynamically stable, semiconducting binary compound formed from phosphorus and iodine.

About PI2
PI2 is a phosphorus-iodine compound characterized by its semiconducting electronic nature. As a thermodynamically stable phase located on the convex hull, it represents a robust configuration of these elements, making it a subject of significant interest for structural analysis and material modeling.
Given its status as a well-documented material with numerous reported structures across databases, PI2 serves as a key reference point for understanding phosphorus-iodine bonding environments. Its stability suggests potential for applications where consistent electronic behavior is required.
Key Properties
Cross-validated computational properties for PI2, aggregated across 4 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.
Applications
Where PI2 is used.
Frequently Asked Questions
Common questions about PI2, answered from cross-validated data.
What is PI2?
PI2 is a thermodynamically stable, semiconducting binary compound formed from phosphorus and iodine.
What is PI2 used for?
What is the band gap of PI2?
Is PI2 a metal, semiconductor, or insulator?
Is PI2 thermodynamically stable?
How many polymorphs of PI2 are known?
What elements does PI2 contain?
Where does the data for PI2 come from?
How It Compares
As a distinct phosphorus-iodine compound, PI2 occupies a unique position in materials research. Without direct siblings in this specific class, it serves as a primary example of how these elements can form stable, semiconducting architectures, providing a benchmark for future exploration of similar binary systems.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
Analyze PI2 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →