Issue 13, 2025

Inclusion and intercalation compounds of arsenic(iii) oxide polymorphs

Abstract

Arsenic(III) oxycompounds exhibit rich structural chemistry due to the presence of stereoactive lone electron pairs on arsenic and secondary As⋯O bonds that stabilize variable conformations of chains and rings in the case of oxyanions and layers or molecules in the case of oxide. These two features are also responsible for the fact that arsenic(III) oxide forms inclusion and intercalation compounds. In this Highlight article, the discovery and characterization of molecular arsenic(III) oxide inclusion compounds with hydrogen and helium are presented. Also, structural studies of As2O3 intercalation compounds with alkali metal halides and pseudohalides are thoroughly described. Finally, future research avenues in the field are presented, which have become more appealing due to the recent literature reports of extraordinary optical properties of arsenic(III) oxide intercalates.

Graphical abstract: Inclusion and intercalation compounds of arsenic(iii) oxide polymorphs

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Article information

Article type
Highlight
Submitted
06 Feb 2025
Accepted
04 Mar 2025
First published
05 Mar 2025
This article is Open Access
Creative Commons BY license

CrystEngComm, 2025,27, 1862-1872

Inclusion and intercalation compounds of arsenic(III) oxide polymorphs

P. A. Guńka, CrystEngComm, 2025, 27, 1862 DOI: 10.1039/D5CE00135H

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