ClN2S2

ClN2S2 is a metastable, semiconducting inorganic compound composed of chlorine, nitrogen, and sulfur.

ClNS
Crystal structure of ClN2S2 (monoclinic, P21/c (No. 14))
Ground-state structure · Materials Project
Overview

About ClN2S2

ClN2S2 is a complex inorganic compound composed of chlorine, nitrogen, and sulfur. As a semiconducting material, it exhibits electronic properties that place it in a unique category for potential specialized research applications. Its structural diversity is evidenced by multiple reported configurations found in materials databases. The compound is characterized by its position above the thermodynamic stability hull, suggesting it is a metastable phase. This inherent instability makes it a subject of interest for fundamental studies into synthesis pathways and the conditions required to stabilize such complex chemical systems.

At a glance

Key Properties

Cross-validated computational properties for ClN2S2, aggregated across 2 databases.

Band Gap

2.66 eV
Range across DFT structures · ground state: wide gap

Energy Above Hull

0.442 eV/atom
Best (lowest) across sources

Stability

Unstable
1 DFT source

Structures

3
2 databases, 1 space group
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of ClN2S2. Tight agreement means computed properties can be trusted without re-running calculations.

Only 1 independent DFT source (materials_project) reports a hull energy for ClN2S2, so cross-source agreement can't be assessed yet.

Crystallography

Reported Structures

Lowest-energy structures reported for ClN2S2, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
P21/c (No. 14)monoclinic2.660.4417-5.1081.83
P21/c (No. 14)monoclinic———2.30
P21/c (No. 14)monoclinic———2.25
Uses

Applications

Where ClN2S2 is used.

Fundamental materials researchSolid-state chemistry studies
Reference

Frequently Asked Questions

Common questions about ClN2S2, answered from cross-validated data.

What is ClN2S2?

ClN2S2 is a metastable, semiconducting inorganic compound composed of chlorine, nitrogen, and sulfur.

More questions
What is ClN2S2 used for?
ClN2S2 is used in fundamental materials research and solid-state chemistry studies.
What is the band gap of ClN2S2?
ClN2S2 has a DFT-computed band gap of 2.66 eV across 3 reported structures. Standard DFT underestimates band gaps, so the measured gap is typically larger.
Is ClN2S2 a metal, semiconductor, or insulator?
DFT predicts a band gap of up to 2.66 eV (a semiconductor). Measured gaps are typically larger.
Is ClN2S2 thermodynamically stable?
ClN2S2 has a lowest energy above hull of 0.442 eV/atom (unstable).
What is the crystal structure of ClN2S2?
The reference structure of ClN2S2 is monoclinic symmetry, space group P21/c (No. 14).
What is the density of ClN2S2?
The computed density of the ground-state structure of ClN2S2 is 1.83 g/cm³.
How many polymorphs of ClN2S2 are known?
3 structures of ClN2S2 are reported across 2 databases, spanning 1 distinct space group.
What elements does ClN2S2 contain?
ClN2S2 contains Cl, N, and S (3 elements).
Where does the data for ClN2S2 come from?
ClN2S2 data is cross-referenced from materials_project, cod.
Comparison

How It Compares

As a unique inorganic compound, ClN2S2 occupies a distinct space in materials research. Without direct structural siblings in its immediate class, it serves as an important case study for understanding how nitrogen and sulfur-based frameworks behave when synthesized with halogen components.

Data sources & attribution
  • materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
  • cod — Data from the Crystallography Open Database (crystallography.net/cod/). Cite: Grazulis et al., J. Appl. Cryst. 42, 726 (2009). (CC0-1.0)

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