KSnO2

Potassium stannite is an inorganic compound containing potassium, tin, and oxygen. It is primarily studied for its potential roles in advanced materials science and as a precursor in the synthesis of complex oxide ceramics.

Crystal structure of KSnO2 (triclinic, P-1 (No. 2))
Ground-state structure · Materials Project
Overview

Key Properties

Cross-validated computational properties for KSnO2, aggregated across 3 databases.

Band Gap

2.40 eV
Range across DFT structures

Energy Above Hull

0.018 eV/atom
Best (lowest) across sources

Stability

Near hull (likely stable)
2 DFT sources

Structures

8
3 databases, 2 space groups
Crystallography

Reported Structures

Lowest-energy structures reported for KSnO2, 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)triclinic2.400.0183-5.6524.52
P-1 (No. 2)
P4/nmm (No. 129)Tetragonal1.90
P4/nmm (No. 129)Tetragonal2.14
P4/nmm (No. 129)Tetragonal2.95
P-1 (No. 2)Triclinic4.31
P-1 (No. 2)Triclinic4.61
P-1 (No. 2)Triclinic4.47
Uses

Applications

Where KSnO2 is used.

Materials science researchCeramic synthesisChemical precursor
Reference

Frequently Asked Questions

Common questions about KSnO2, answered from cross-validated data.

What is KSnO2?

Potassium stannite is an inorganic compound containing potassium, tin, and oxygen. It is primarily studied for its potential roles in advanced materials science and as a precursor in the synthesis of complex oxide ceramics.

More questions
What is KSnO2 used for?
KSnO2 is used in materials science research, ceramic synthesis, and chemical precursor.
What is the band gap of KSnO2?
KSnO2 has a DFT-computed band gap of 2.40 eV across 8 reported structures.
Is KSnO2 a metal, semiconductor, or insulator?
With a band gap up to 2.40 eV it is a semiconductor.
Is KSnO2 thermodynamically stable?
KSnO2 has a lowest energy above hull of 0.018 eV/atom (near hull (likely stable)).
What is the crystal structure of KSnO2?
The lowest-energy reported polymorph of KSnO2 is triclinic symmetry, space group P-1 (No. 2).
What is the density of KSnO2?
The computed density of the ground-state structure of KSnO2 is 4.52 g/cm³.
How many polymorphs of KSnO2 are known?
8 structures of KSnO2 are reported across 3 databases, spanning 2 distinct space groups.
What elements does KSnO2 contain?
KSnO2 contains K, O, and Sn (3 elements).
Where does the data for KSnO2 come from?
KSnO2 data is cross-referenced from materials_project, jarvis, mpaloe.
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Related Compounds

Other Perovskite Oxides in the database.

Data sources & attribution
  • materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
  • jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
  • mpaloe — Data from mpaloe.

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