PrF3

praseodymium(III) fluoride · praseodymium trifluoride

Praseodymium(III) fluoride is a stable, wide-gap insulating rare-earth salt commonly used in optical coatings and chemical synthesis.

FPr
Crystal structure of PrF3
Ground-state structure · Materials Project
Overview

About praseodymium(III) fluoride

Praseodymium(III) fluoride is a thermodynamically stable inorganic compound characterized by its insulating electronic nature. As a robust fluoride, it maintains structural integrity across a wide range of conditions, making it a reliable material for high-performance applications. Its stability is underscored by its presence on the convex hull, indicating a highly favorable energetic state. Due to its extensive documentation in structural databases, it serves as a well-understood reference point for rare-earth halide research. It is primarily utilized in optical technologies where its wide-gap electronic properties prevent unwanted absorption, and it serves as a critical chemical precursor for synthesizing other praseodymium-based materials.

At a glance

Key Properties

Cross-validated computational properties for praseodymium(III) fluoride, aggregated across 3 databases.

Band Gap

5.46–7.60 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

33
3 databases, 11 space groups
Uses

Applications

Where praseodymium(III) fluoride is used.

Optical coatingsPrecursor for praseodymium-based materialsFluoride glass manufacturingSpecialty ceramics
Reference

Frequently Asked Questions

Common questions about praseodymium(III) fluoride, answered from cross-validated data.

What is PrF3?

Praseodymium(III) fluoride is a stable, wide-gap insulating rare-earth salt commonly used in optical coatings and chemical synthesis.

More questions
What is PrF3 used for?
praseodymium(III) fluoride (PrF3) is used in optical coatings, precursor for praseodymium-based materials, fluoride glass manufacturing, and specialty ceramics.
What is the band gap of PrF3?
praseodymium(III) fluoride (PrF3) has a DFT-computed band gap of 5.46–7.60 eV across 33 reported structures.
Is PrF3 a metal, semiconductor, or insulator?
With a wide band gap up to 7.60 eV it is an insulator / wide-band-gap material.
Is PrF3 thermodynamically stable?
Yes — praseodymium(III) fluoride (PrF3) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of PrF3 are known?
33 structures of PrF3 are reported across 3 databases, spanning 11 distinct space groups.
What elements does PrF3 contain?
praseodymium(III) fluoride (PrF3) contains F and Pr (2 elements).
Where does the data for PrF3 come from?
PrF3 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a standalone member of the rare-earth trifluoride family, this compound represents a fundamental building block for fluoride-based optics and ceramics. Its inherent thermodynamic stability and well-characterized structural behavior distinguish it as a reliable, high-purity component in material synthesis compared to less stable or more reactive halide alternatives.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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