CrOF3

CrOF3 is a semiconducting oxyfluoride material that belongs to the broader class of spinel oxide catalysts.

Crystal structure of CrOF3 (tetragonal, P41 (No. 76))
Ground-state structure · Materials Project
Overview

About CrOF3

CrOF3 is a semiconducting compound characterized by its unique combination of chromium, oxygen, and fluorine. As a member of the spinel oxide catalyst class, it represents a complex structural arrangement that is of significant interest for fundamental materials research. Due to its position above the thermodynamic hull, this material is considered metastable, which presents intriguing challenges and opportunities for synthetic chemists. Its electronic character suggests potential utility in specialized catalytic applications where semiconducting properties are advantageous.

At a glance

Key Properties

Cross-validated computational properties for CrOF3, aggregated across 3 databases.

Band Gap

0.95–2.08 eV
Range across DFT structures · ground state: insulator

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

Stable
3 DFT sources

Structures

6
3 databases, 1 space group
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of CrOF3. Tight agreement means computed properties can be trusted without re-running calculations.

Agreement Score

0.23 / 1.00
Trust tier: low

Hull Spread

0.192 eV
EAH spread across sources

Sources Compared

3
jarvis, materials_project, oqmd

Space Group Consensus

All match
Crystallography

Reported Structures

Lowest-energy structures reported for CrOF3, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
P41 (No. 76)tetragonal0.950.0000-2.284—
——2.070.0648-2.258—
——2.080.0731-2.250—
P41 (No. 76)tetragonal2.190.1925-6.3083.20
P41 (No. 76)tetragonal———3.27
P41 (No. 76)tetragonal———3.49
P41 (No. 76)tetragonal———3.20
Uses

Applications

Where CrOF3 is used.

Chemical catalysis researchMaterials science exploration
Reference

Frequently Asked Questions

Common questions about CrOF3, answered from cross-validated data.

What is CrOF3?

CrOF3 is a semiconducting oxyfluoride material that belongs to the broader class of spinel oxide catalysts.

More questions
What is CrOF3 used for?
CrOF3 is used in chemical catalysis research and materials science exploration.
What is the band gap of CrOF3?
CrOF3 has a DFT-computed band gap of 0.95–2.08 eV across 6 reported structures. Standard DFT underestimates band gaps, so the measured gap is typically larger.
Is CrOF3 a metal, semiconductor, or insulator?
DFT predicts a band gap of up to 2.08 eV (a semiconductor). Measured gaps are typically larger.
Is CrOF3 thermodynamically stable?
Yes — CrOF3 sits on the convex hull (energy above hull 0 eV/atom), i.e. stable.
What is the crystal structure of CrOF3?
The reference structure of CrOF3 is tetragonal symmetry, space group P41 (No. 76).
How many polymorphs of CrOF3 are known?
6 structures of CrOF3 are reported across 3 databases, spanning 1 distinct space group.
What elements does CrOF3 contain?
CrOF3 contains Cr, F, and O (3 elements).
Where does the data for CrOF3 come from?
CrOF3 data is cross-referenced from jarvis, oqmd, materials_project, mpaloe.
Comparison

How It Compares

Within the spinel oxide catalysts class.

Unlike the highly stable and widely utilized spinel MgAl2O4 or the robust binary oxides like ZnO and NiO, CrOF3 occupies a more precarious thermodynamic state. While materials like LaMnO3 and LaNiO3 are well-established perovskite catalysts, CrOF3 represents a more exotic, less conventional entry in the broader oxide catalyst landscape, requiring precise control during synthesis to navigate its inherent instability.

Explore

Related Compounds

Other Spinel Oxide Catalysts in the database.

Data sources & attribution
  • jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
  • oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
  • materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
  • mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.

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