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Infinitely Adaptive Transition-Metal Ordering in Ln2O2MSe2?Type Oxychalcogenides

Ainsworth, Chris, Wang, Chun-Hai, Johnston, Hannah, McCabe, E.E., Tucker, Matthew, Brand, Hannah, Evans, John S O (2015) Infinitely Adaptive Transition-Metal Ordering in Ln2O2MSe2?Type Oxychalcogenides. Inorganic Chemistry, 54 (15). pp. 7230-7238. ISSN 0020-1669. (doi:10.1021/acs.inorgchem.5b00599) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1021/acs.inorgchem.5b00599

Abstract

A number of Ln2O2MSe2 (Ln = La and Ce; M = Fe, Zn, Mn,

and Cd) compounds, built from alternating layers of fluorite-like [Ln2O2]2+

sheets and antifluorite-like [MSe2]2? sheets, have recently been reported in the

literatures. The available MSe4/2 tetrahedral sites are half-occupied, and

different compositions display different ordering patterns: [MSe2]2? layers

contain MSe4/2 tetrahedra that are exclusively edge-sharing (stripe-like),

exclusively corner-sharing (checkerboard-like), or mixtures of both. This paper

reports 60 new compositions in this family. We reveal that the transition-metal

arrangement can be systematically controlled by either Ln or M doping, leading

to an “infinitely adaptive” structural family. We show how this is achieved in

La2O2Fe1 ? xZnxSe2, La2

O2Zn1 ? xMnxSe2, La2

O2Mn1 ? xCdxSe2 ,

Ce2O2Fe1 ?xZnxSe2, Ce2

O2Zn1?xMnxSe2, Ce2

O2Mn1 ?xCdxSe2 ,

La2?yCeyO2FeSe2, La2?yCeyO2ZnSe2, La2?yCeyO2MnSe2, and La2?yCeyO2CdSe2

solid solutions.

Item Type: Article
DOI/Identification number: 10.1021/acs.inorgchem.5b00599
Subjects: Q Science > QD Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences
Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Emma McCabe
Date Deposited: 13 Dec 2016 16:58 UTC
Last Modified: 01 Aug 2019 10:41 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/59674 (The current URI for this page, for reference purposes)
McCabe, E.E.: https://orcid.org/0000-0001-5868-4570
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