KC2N3

KC2N3 is a thermodynamically stable, wide-band-gap insulating material composed of potassium, carbon, and nitrogen.

CKN
Crystal structure of KC2N3
Ground-state structure · Materials Project
Overview

About KC2N3

KC2N3 is a distinct inorganic compound characterized by its insulating electronic nature and wide-band-gap profile. Its position on the convex hull indicates that it is a thermodynamically stable phase, making it a subject of interest for researchers investigating complex carbon-nitrogen-potassium systems. The compound has been identified across multiple structural databases, reflecting its significance in computational materials discovery. As a stable insulator, it serves as a foundational building block for exploring the synthesis and behavior of nitrogen-rich frameworks. Its structural variety suggests potential for tuning properties through different atomic arrangements, providing a versatile platform for experimental and theoretical studies in solid-state chemistry.

At a glance

Key Properties

Cross-validated computational properties for KC2N3, aggregated across 3 databases.

Band Gap

3.74–4.65 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

16
3 databases, 3 space groups
Uses

Applications

Where KC2N3 is used.

Fundamental materials researchSolid-state chemistry modelingAdvanced dielectric material exploration
Reference

Frequently Asked Questions

Common questions about KC2N3, answered from cross-validated data.

What is KC2N3?

KC2N3 is a thermodynamically stable, wide-band-gap insulating material composed of potassium, carbon, and nitrogen.

More questions
What is KC2N3 used for?
KC2N3 is used in fundamental materials research, solid-state chemistry modeling, and advanced dielectric material exploration.
What is the band gap of KC2N3?
KC2N3 has a DFT-computed band gap of 3.74–4.65 eV across 16 reported structures.
Is KC2N3 a metal, semiconductor, or insulator?
With a wide band gap up to 4.65 eV it is an insulator / wide-band-gap material.
Is KC2N3 thermodynamically stable?
Yes — KC2N3 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of KC2N3 are known?
16 structures of KC2N3 are reported across 3 databases, spanning 3 distinct space groups.
What elements does KC2N3 contain?
KC2N3 contains C, K, and N (3 elements).
Where does the data for KC2N3 come from?
KC2N3 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a unique member of its chemical system, KC2N3 represents a stable configuration that stands out for its insulating behavior. While it does not have direct structural siblings in this specific dataset, its stability relative to other potential phases in the C-N-K system highlights its importance as a benchmark for understanding how alkali metals integrate into carbon-nitrogen networks.

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

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