Hg2O8Se2

Hg2O8Se2 is a stable, semiconducting mercury oxyselenide compound characterized by its well-defined structural framework.

HgOSe
Crystal structure of Hg2O8Se2
Ground-state structure · Materials Project
Overview

About Hg2O8Se2

Hg2O8Se2 is a complex mercury-based selenate compound that exhibits semiconducting electronic behavior. Its position on the convex hull indicates that it is a thermodynamically stable phase, making it a subject of interest for researchers investigating stable inorganic frameworks.

With multiple documented structural variations across databases, this compound represents a versatile building block in solid-state chemistry. Its specific arrangement of mercury, oxygen, and selenium atoms provides a unique platform for studying electronic transport properties in chalcogen-based systems.

At a glance

Key Properties

Cross-validated computational properties for Hg2O8Se2, aggregated across 3 databases.

Band Gap

0.84 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

7
3 databases, 1 space group
Uses

Applications

Where Hg2O8Se2 is used.

Solid-state researchMaterials science characterizationSemiconductor development
Reference

Frequently Asked Questions

Common questions about Hg2O8Se2, answered from cross-validated data.

What is Hg2O8Se2?

Hg2O8Se2 is a stable, semiconducting mercury oxyselenide compound characterized by its well-defined structural framework.

More questions
What is Hg2O8Se2 used for?
Hg2O8Se2 is used in solid-state research, materials science characterization, and semiconductor development.
What is the band gap of Hg2O8Se2?
Hg2O8Se2 has a DFT-computed band gap of 0.84 eV across 7 reported structures.
Is Hg2O8Se2 a metal, semiconductor, or insulator?
With a band gap up to 0.84 eV it is a semiconductor.
Is Hg2O8Se2 thermodynamically stable?
Yes — Hg2O8Se2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of Hg2O8Se2 are known?
7 structures of Hg2O8Se2 are reported across 3 databases, spanning 1 distinct space group.
What elements does Hg2O8Se2 contain?
Hg2O8Se2 contains Hg, O, and Se (3 elements).
Where does the data for Hg2O8Se2 come from?
Hg2O8Se2 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a thermodynamically stable semiconducting phase, Hg2O8Se2 serves as a foundational example of mercury-based oxyselenides. Without direct siblings in this specific classification, it stands as a distinct reference point for understanding the stability and electronic behavior of complex mercury-oxygen-selenium frameworks.

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

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