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Infinitely Adaptive Transition-Metal Ordering in Ln2O2MSe2-Type Oxychalcogenides

Ainsworth, Chris M.; Wang, Chun-Hai; Johnston, Hannah E.; McCabe, Emma E.; Tucker, Matthew G.; Brand, Helen E.A.; Evans, John S.O.

Infinitely Adaptive Transition-Metal Ordering in Ln2O2MSe2-Type Oxychalcogenides Thumbnail


Chris M. Ainsworth

Chun-Hai Wang

Hannah E. Johnston

Matthew G. Tucker

Helen E.A. Brand


The origin of transition-metal ordering in Ln2O2MSe2 oxychalcogenides has been revealed by investigating a range of solid solutions. Transition-metal ordering is determined by the relative sizes of [Ln2O2]2+ and [MSe2]2− layers and can be exquisitely tuned by substitution in either layer, leading to an “infinitely adaptive” structural family. The proportion of the inherently smaller corner-shared motif increases as the transition-metal size increases relative to the lanthanide oxide layers.


Ainsworth, C. M., Wang, C., Johnston, H. E., McCabe, E. E., Tucker, M. G., Brand, H. E., & Evans, J. S. (2015). Infinitely Adaptive Transition-Metal Ordering in Ln2O2MSe2-Type Oxychalcogenides. Inorganic Chemistry, 54(15), 7230-7238.

Journal Article Type Article
Acceptance Date Mar 16, 2015
Online Publication Date Apr 30, 2015
Publication Date Aug 3, 2015
Deposit Date May 4, 2015
Publicly Available Date Apr 30, 2016
Journal Inorganic Chemistry
Print ISSN 0020-1669
Electronic ISSN 1520-510X
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 54
Issue 15
Pages 7230-7238


Accepted Journal Article (1.5 Mb)

Copyright Statement
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Inorganic Chemistry, copyright © 2015 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see

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