Al4F18K4O4

Al4F18K4O4 is a semiconducting inorganic compound containing aluminum, fluorine, potassium, and oxygen that exists in a metastable state.

AlFKO
Crystal structure of Al4F18K4O4
Ground-state structure · Materials Project
Overview

About Al4F18K4O4

Al4F18K4O4 is a complex inorganic compound composed of aluminum, fluorine, potassium, and oxygen. As a semiconducting material, it represents a specialized chemical system that bridges traditional ionic and covalent bonding characteristics within its crystal lattice.

Due to its position relative to the thermodynamic ground state, this compound is considered metastable. Its existence within material databases highlights the ongoing scientific interest in exploring synthetic pathways for complex oxyfluoride frameworks.

At a glance

Key Properties

Cross-validated computational properties for Al4F18K4O4, aggregated across 2 databases.

Band Gap

0.19 eV
Range across DFT structures

Energy Above Hull

0.280 eV/atom
Best (lowest) across sources

Stability

Above hull
1 DFT source

Structures

3
2 databases, 1 space group
Reference

Frequently Asked Questions

Common questions about Al4F18K4O4, answered from cross-validated data.

What is Al4F18K4O4?

Al4F18K4O4 is a semiconducting inorganic compound containing aluminum, fluorine, potassium, and oxygen that exists in a metastable state.

More questions
What is the band gap of Al4F18K4O4?
Al4F18K4O4 has a DFT-computed band gap of 0.19 eV across 3 reported structures.
Is Al4F18K4O4 a metal, semiconductor, or insulator?
With a band gap up to 0.19 eV it is a semiconductor.
Is Al4F18K4O4 thermodynamically stable?
Al4F18K4O4 has a lowest energy above hull of 0.280 eV/atom (above hull).
How many polymorphs of Al4F18K4O4 are known?
3 structures of Al4F18K4O4 are reported across 2 databases, spanning 1 distinct space group.
What elements does Al4F18K4O4 contain?
Al4F18K4O4 contains Al, F, K, and O (4 elements).
Where does the data for Al4F18K4O4 come from?
Al4F18K4O4 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a unique inorganic phase, Al4F18K4O4 occupies a distinct niche in materials research. Without direct structural analogs in its immediate class, it serves as an important reference point for understanding how aluminum-fluorine-oxygen networks can be stabilized in the presence of alkali metal cations.

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

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