LiSbF6

Lithium hexafluoroantimonate · Lithium fluoroantimonate

Lithium hexafluoroantimonate is a stable, wide-gap insulating salt used in specialized electrochemical research.

FLiSb
Crystal structure of LiSbF6 (trigonal, R-3 (No. 148))
Ground-state structure · Materials Project
Overview

About Lithium hexafluoroantimonate

Lithium hexafluoroantimonate is a thermodynamically stable inorganic compound characterized by its insulating electronic nature. As a member of the complex fluoride family, it possesses a robust structural framework that has been documented across multiple crystallographic studies.

Its inherent stability and electronic properties make it a subject of interest for researchers investigating specialized electrolyte systems and ionic conductors. The compound serves as a critical reference point for understanding the behavior of lithium-based fluoroantimonate salts in various chemical environments.

At a glance

Key Properties

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

Band Gap

4.91–5.36 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 LiSbF6. Tight agreement means computed properties can be trusted without re-running calculations.

Agreement Score

1.00 / 1.00
Trust tier: high

Hull Spread

0.000 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 LiSbF6, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
——5.360.0000-2.819—
R-3 (No. 148)trigonal4.930.0000-5.0584.11
R-3 (No. 148)trigonal4.910.0000-2.615—
——5.300.0324-2.787—
R-3 (No. 148)trigonal———3.81
R-3 (No. 148)trigonal———3.56
R-3 (No. 148)trigonal———3.67
Uses

Applications

Where Lithium hexafluoroantimonate is used.

Electrochemical electrolyte researchIonic conductor studies
Reference

Frequently Asked Questions

Common questions about Lithium hexafluoroantimonate, answered from cross-validated data.

What is LiSbF6?

Lithium hexafluoroantimonate is a stable, wide-gap insulating salt used in specialized electrochemical research.

More questions
What is LiSbF6 used for?
Lithium hexafluoroantimonate (LiSbF6) is used in electrochemical electrolyte research and ionic conductor studies.
What is the band gap of LiSbF6?
Lithium hexafluoroantimonate (LiSbF6) has a DFT-computed band gap of 4.91–5.36 eV across 6 reported structures. Standard DFT underestimates band gaps, so the measured gap is typically larger.
Is LiSbF6 a metal, semiconductor, or insulator?
DFT predicts a wide band gap of up to 5.36 eV (an insulator or wide-band-gap material).
Is LiSbF6 thermodynamically stable?
Yes — Lithium hexafluoroantimonate (LiSbF6) sits on the convex hull (energy above hull 0 eV/atom), i.e. stable.
What is the crystal structure of LiSbF6?
The reference structure of Lithium hexafluoroantimonate (LiSbF6) is trigonal symmetry, space group R-3 (No. 148).
What is the density of LiSbF6?
The computed density of the ground-state structure of Lithium hexafluoroantimonate (LiSbF6) is 4.11 g/cm³.
How many polymorphs of LiSbF6 are known?
6 structures of LiSbF6 are reported across 3 databases, spanning 1 distinct space group.
What elements does LiSbF6 contain?
Lithium hexafluoroantimonate (LiSbF6) contains F, Li, and Sb (3 elements).
Where does the data for LiSbF6 come from?
LiSbF6 data is cross-referenced from oqmd, materials_project, jarvis, mpaloe.
Comparison

How It Compares

As a thermodynamically stable phase, this compound represents a well-defined structural archetype within the broader class of complex lithium fluoride salts. It serves as a foundational example for studying the interplay between electronegative fluorine coordination and stable alkali metal lattices.

Data sources & attribution
  • 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)
  • jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
  • mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.

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