C3Os2

C3Os2 is a semiconducting binary compound of carbon and osmium that is currently studied for its diverse structural possibilities.

COs
Crystal structure of C3Os2
Ground-state structure · Materials Project
Overview

About C3Os2

C3Os2 is a binary compound composed of carbon and osmium. As a semiconducting material, it represents a specialized intersection of transition metal chemistry and carbon-based structural motifs, drawing interest for its unique electronic configuration.

Due to its position above the thermodynamic hull, this compound is considered potentially unstable under ambient conditions. Its existence in multiple reported structures across various databases highlights its role as a subject of ongoing computational exploration in materials science.

At a glance

Key Properties

Cross-validated computational properties for C3Os2, aggregated across 4 databases.

Band Gap

0.08–0.24 eV
Range across DFT structures

Energy Above Hull

1.172 eV/atom
Best (lowest) across sources

Stability

Above hull
3 DFT sources

Structures

6
4 databases, 4 space groups
Reference

Frequently Asked Questions

Common questions about C3Os2, answered from cross-validated data.

What is C3Os2?

C3Os2 is a semiconducting binary compound of carbon and osmium that is currently studied for its diverse structural possibilities.

More questions
What is the band gap of C3Os2?
C3Os2 has a DFT-computed band gap of 0.08–0.24 eV across 6 reported structures.
Is C3Os2 a metal, semiconductor, or insulator?
With a band gap up to 0.24 eV it is a semiconductor.
Is C3Os2 thermodynamically stable?
C3Os2 has a lowest energy above hull of 1.172 eV/atom (above hull).
How many polymorphs of C3Os2 are known?
6 structures of C3Os2 are reported across 4 databases, spanning 4 distinct space groups.
What elements does C3Os2 contain?
C3Os2 contains C and Os (2 elements).
Where does the data for C3Os2 come from?
C3Os2 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a unique binary phase in the carbon-osmium system, C3Os2 occupies a distinct niche where its semiconducting nature sets it apart from more conventional metallic or insulating binary compounds. It serves as a primary example of how complex carbon-metal architectures can be theoretically mapped even when thermodynamic stability remains a significant challenge.

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

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