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Anion redox as a means to ferive layered manganese oxychalcogenides with exotic intergrowth structures

Abstract:
Topochemistry enables step-by-step conversions of solid-state materials often leading to metastable structures that retain initial structural motifs. Recent advances in this field revealed many examples where relatively bulky anionic constituents were actively involved in redox reactions during (de)intercalation processes. Such reactions are often accompanied by anion-anion bond formation, which heralds possibilities to design novel structure types disparate from known precursors, in a controlled manner. Here we present the multistep conversion of layered oxychalcogenides Sr2MnO2Cu1.5Ch2 (Ch = S, Se) into Cu-deintercalated phases where antifluorite type [Cu1.5Ch2]2.5- slabs collapsed into two-dimensional arrays of chalcogen dimers. The collapse of the chalcogenide layers on deintercalation led to various stacking types of Sr2MnO2Ch2 slabs, which formed polychalcogenide structures unattainable by conventional high-temperature syntheses. Anion-redox topochemistry is demonstrated to be of interest not only for electrochemical applications but also as a means to design complex layered architectures.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1038/s41467-023-38489-3

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Inorganic Chemistry
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Inorganic Chemistry
Role:
Author
ORCID:
0000-0002-5951-7077
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Inorganic Chemistry
Role:
Author
More by this author
Division:
MPLS
Department:
Chemistry
Sub department:
Inorganic Chemistry
Role:
Author
More by this author
Division:
MPLS
Department:
Chemistry
Sub department:
Inorganic Chemistry
Role:
Author


Publisher:
Springer Nature
Journal:
Nature Communications More from this journal
Volume:
14
Article number:
2917
Publication date:
2023-05-22
Acceptance date:
2023-05-03
DOI:
EISSN:
2041-1723


Language:
English
Keywords:
Pubs id:
1339686
Local pid:
pubs:1339686
Deposit date:
2023-05-03

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