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Enhancing the chemical flexibility of hybrid perovskites by introducing divalent ligands

Burley, Lydia G., Beecham-Lonsdale, James H., Srivastava, Anant Kumar, Collings, Ines E., Saines, Paul J. (2021) Enhancing the chemical flexibility of hybrid perovskites by introducing divalent ligands. Dalton Transactions, . ISSN 1477-9226. (doi:10.1039/D1DT00878A) (KAR id:87685)

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Abstract

Herein we report the synthesis and structures of [(CH\(_3\))\(_2\)NH\(_2\)]Er(HCO\(_2\))\(_2\)(C\(_2\)O\(_4\)) and [(NH\(_2\))\(_3\)C]Er(HCO\(_2\))\(_2\)(C\(_2\)O\(_4\)), in which the inclusion of divalent oxalate ligands allows for the exclusive incorporation of A\(^+\) and B\(^{3+}\) cations in an ABX\(_3\) hybrid perovskite structure for the first time. We rationalise the observed thermal expansion of these materials, including negative thermal expansion, and find evidence for weak antiferromagnetic coupling in [(CH\(_3\))\(_2\)NH\(_2\)]Er(HCO\(_2\))\(_2\)(C\(_2\)O\(_4\)).

Item Type: Article
DOI/Identification number: 10.1039/D1DT00878A
Subjects: Q Science
Q Science > QD Chemistry
Divisions: Divisions > Division of Natural Sciences > School of Physical Sciences
Depositing User: Paul Saines
Date Deposited: 21 Apr 2021 08:45 UTC
Last Modified: 22 Apr 2021 08:56 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/87685 (The current URI for this page, for reference purposes)
Saines, Paul J.: https://orcid.org/0000-0002-4207-2112
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