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default_学術雑誌論文 / Journal Article(1) |
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タイトル |
Potassium-rich antiperovskites K<sub>3</sub>HTe and K<sub>3</sub>FTe and their structural relation to lithium and sodium counterparts |
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言語 |
en |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
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アクセス権 |
metadata only access |
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アクセス権URI |
http://purl.org/coar/access_right/c_14cb |
| 著者 |
Okada Koji
Fujii Susumu
Tassel Cédric
Gao Shenghan
Ubukata Hiroki
Pan Wenli
Yamamoto Kentaro
Uchimoto Yoshiharu
Kuwabara Akihide
Kageyama Hiroshi
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内容記述タイプ |
Abstract |
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内容記述 |
Unlike perovskite oxides, antiperovskites M<sub>3</sub>HCh and M<sub>3</sub>FCh (M = Li, Na; Ch = S, Se, Te) mostly retain their ideal cubic structure over a wide range of compositions owing to anionic size flexibility and low-energy phonon modes that promote their ionic conductivity. In this study, we show the synthesis of potassium-based antiperovskites K<sub>3</sub>HTe and K<sub>3</sub>FTe and discuss the structural features in comparison with lithium and sodium analogues. It is shown experimentally and theoretically that both compounds maintain a cubic symmetry and can be prepared at ambient pressure, in contrast to most of the reported M<sub>3</sub>HCh and M3FCh which require high pressure synthesis. A systematic comparison of a series of cubic M3HTe and M<sub>3</sub>FTe (M = Li, Na, K) revealed that telluride anions contract in the order of K, Na, Li, with a pronounced contraction in the Li system. This result can be understood in terms of the difference in charge density of alkali metal ions as well as the size flexibility of Ch anions, contributing to the stability of the cubic symmetry. |
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言語 |
en |
| bibliographic_information |
en : Dalton Transactions
巻 52,
号 26,
p. 9026-9031,
ページ数 6,
発行日 2023-05-26
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| 出版者 |
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出版者 |
ROYAL SOC CHEMISTRY |
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言語 |
en |
| item_10001_source_id_9 |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
1477-9234 |
| item_10001_relation_14 |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1039/D3DT01039B Article type Paper |
| 権利 |
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権利情報 |
© The Royal Society of Chemistry |
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言語 |
en |
| 出版タイプ |
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出版タイプ |
NA |
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出版タイプResource |
http://purl.org/coar/version/c_be7fb7dd8ff6fe43 |
https://doi.org/10.1039/D3DT01039B
