F6Li3Sb

F6Li3Sb is a wide-band-gap insulating compound containing lithium, antimony, and fluorine that is currently studied for its structural diversity.

FLiSb
Crystal structure of F6Li3Sb (triclinic, P-1 (No. 2))
Ground-state structure · Materials Project
Overview

About F6Li3Sb

F6Li3Sb is a complex inorganic compound composed of lithium, antimony, and fluorine. As a wide-band-gap insulator, it exhibits electronic properties typical of highly ionic fluoride materials, which are often investigated for their potential role in solid-state ionics or specialized electrochemical environments.

While multiple structural configurations have been documented across scientific databases, the compound is characterized as being thermodynamically above the hull. This suggests that it may be metastable or require specific synthesis conditions to stabilize, making it a subject of interest for researchers studying phase stability in complex lithium-antimony-fluoride systems.

At a glance

Key Properties

Cross-validated computational properties for F6Li3Sb, aggregated across 3 databases.

Band Gap

3.39–3.85 eV
Range across DFT structures

Energy Above Hull

0.157 eV/atom
Best (lowest) across sources

Stability

Above hull
2 DFT sources

Structures

5
3 databases, 2 space groups
Crystallography

Reported Structures

Lowest-energy structures reported for F6Li3Sb, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
P-1 (No. 2)triclinic3.660.1569-4.9533.30
P-1 (No. 2)triclinic3.850.1845-4.9261.76
Fm-3m (No. 225)cubic3.390.3406-4.7702.95
3.14
Uses

Applications

Where F6Li3Sb is used.

Solid-state ionics researchMaterials science explorationElectrochemical phase stability studies
Reference

Frequently Asked Questions

Common questions about F6Li3Sb, answered from cross-validated data.

What is F6Li3Sb?

F6Li3Sb is a wide-band-gap insulating compound containing lithium, antimony, and fluorine that is currently studied for its structural diversity.

More questions
What is F6Li3Sb used for?
F6Li3Sb is used in solid-state ionics research, materials science exploration, and electrochemical phase stability studies.
What is the band gap of F6Li3Sb?
F6Li3Sb has a DFT-computed band gap of 3.39–3.85 eV across 5 reported structures.
Is F6Li3Sb a metal, semiconductor, or insulator?
With a wide band gap up to 3.85 eV it is an insulator / wide-band-gap material.
Is F6Li3Sb thermodynamically stable?
F6Li3Sb has a lowest energy above hull of 0.157 eV/atom (above hull).
What is the crystal structure of F6Li3Sb?
The lowest-energy reported polymorph of F6Li3Sb is triclinic symmetry, space group P-1 (No. 2).
What is the density of F6Li3Sb?
The computed density of the ground-state structure of F6Li3Sb is 3.30 g/cm³.
How many polymorphs of F6Li3Sb are known?
5 structures of F6Li3Sb are reported across 3 databases, spanning 2 distinct space groups.
What elements does F6Li3Sb contain?
F6Li3Sb contains F, Li, and Sb (3 elements).
Where does the data for F6Li3Sb come from?
F6Li3Sb data is cross-referenced from materials_project, omat24, alexandria.
Comparison

How It Compares

As a unique ternary fluoride, F6Li3Sb represents a specialized composition within the broader landscape of lithium-based insulators. Unlike more common, highly stable binary fluorides, this compound occupies a distinct structural space that highlights the challenges of predicting stable phases in multi-element lithium-antimony systems.

Data sources & attribution
  • materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
  • omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
  • alexandria — Data from alexandria.

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