SeO5

SeO5 is a semiconducting selenium oxide that exhibits significant structural diversity despite being thermodynamically unstable.

OSe
Crystal structure of SeO5
Ground-state structure · Materials Project
Overview

About SeO5

SeO5 is a complex selenium oxide characterized by its semiconducting electronic nature. Given the high number of reported structures across various databases, it represents a fascinating case study in the structural diversity of selenium-oxygen systems despite its inherent instability.

Because it exists above the thermodynamic hull, SeO5 is considered a metastable or unstable phase under standard conditions. Its study is primarily driven by the pursuit of understanding high-pressure or non-equilibrium synthesis pathways that allow such unique oxide architectures to form.

At a glance

Key Properties

Cross-validated computational properties for SeO5, aggregated across 2 databases.

Band Gap

0.34 eV
Range across DFT structures

Energy Above Hull

0.502 eV/atom
Best (lowest) across sources

Stability

Above hull
1 DFT source

Structures

13
2 databases, 5 space groups
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting SeO5.

Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Reference

Frequently Asked Questions

Common questions about SeO5, answered from cross-validated data.

What is SeO5?

SeO5 is a semiconducting selenium oxide that exhibits significant structural diversity despite being thermodynamically unstable.

More questions
What is the band gap of SeO5?
SeO5 has a DFT-computed band gap of 0.34 eV across 13 reported structures.
Is SeO5 a metal, semiconductor, or insulator?
With a band gap up to 0.34 eV it is a semiconductor.
Is SeO5 thermodynamically stable?
SeO5 has a lowest energy above hull of 0.502 eV/atom (above hull).
How many polymorphs of SeO5 are known?
13 structures of SeO5 are reported across 2 databases, spanning 5 distinct space groups.
How is SeO5 synthesized?
Literature-reported routes for SeO5 include solid state (2 procedures documented).
What elements does SeO5 contain?
SeO5 contains O and Se (2 elements).
Where does the data for SeO5 come from?
SeO5 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a unique oxide composition, SeO5 occupies a niche position in materials science where its structural variety contrasts with the relative scarcity of stable, high-oxygen-content selenium phases.

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

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