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Polyoxocationic antimony oxide cluster with acidic protons
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- Watanabe, Yuki
- Department of Energy and Hydrocarbon Chemistry, Graduate school of Engineering, Kyoto University
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- Kim, Hyeon-Deuk
- Division of Chemistry, Graduate School of Science, Kyoto University
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- Yamamoto, Takafumi
- Department of Energy and Hydrocarbon Chemistry, Graduate school of Engineering, Kyoto University
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- Yabuuchi, Masayoshi
- Department of Energy and Hydrocarbon Chemistry, Graduate school of Engineering, Kyoto University
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- Karakulina, Olesia M.
- EMAT, University of Antwerp
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- Noda, Yasuto
- Division of Chemistry, Graduate School of Science, Kyoto University
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- Kurihara, Takuya
- Division of Chemistry, Graduate School of Science, Kyoto University
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- Chang, I-Ya
- Division of Chemistry, Graduate School of Science, Kyoto University
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- Higashi, Masanobu
- Department of Energy and Hydrocarbon Chemistry, Graduate school of Engineering, Kyoto University
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- Tomita, Osamu
- Department of Energy and Hydrocarbon Chemistry, Graduate school of Engineering, Kyoto University
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- Tassel, Cédric
- Department of Energy and Hydrocarbon Chemistry, Graduate school of Engineering, Kyoto University
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- Kato, Daichi
- Department of Energy and Hydrocarbon Chemistry, Graduate school of Engineering, Kyoto University
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- Xia, Jingxin
- Department of Energy and Hydrocarbon Chemistry, Graduate school of Engineering, Kyoto University
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- Goto, Tatsuhiko
- Department of Energy and Hydrocarbon Chemistry, Graduate school of Engineering, Kyoto University
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- Brown, Craig M.
- Center for Neutron Research, National Institute of Standards and Technology
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- Shimoyama, Yuto
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo
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- Ogiwara, Naoki
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo
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- Hadermann, Joke
- EMAT, University of Antwerp
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- Abakumov, Artem M.
- CEST, Skolkovo Institute of Science and Technology
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- Uchida, Sayaka
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo
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- Abe, Ryu
- Department of Energy and Hydrocarbon Chemistry, Graduate school of Engineering, Kyoto University; CREST, Japan Science and Technology Agency (JST)
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- Kageyama, Hiroshi
- Department of Energy and Hydrocarbon Chemistry, Graduate school of Engineering, Kyoto University; CREST, Japan Science and Technology Agency (JST)
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Description
The success and continued expansion of research on metal-oxo clusters owe largely to their structural richness and wide range of functions. However, while most of them known to date are negatively charged polyoxometalates, there is only a handful of cationic ones, much less functional ones. Here, we show an all-inorganic hydroxyiodide [H₁₀.₇Sb₃₂.₁O₄₄][H₂.₁Sb₂.₁I₈O₆][Sb₀.₇₆I₆]₂·25H₂O (HSbOI), forming a face-centered cubic structure with cationic Sb₃₂O₄₄ clusters and two types of anionic clusters in its interstitial spaces. Although it is submicrometer in size, electron diffraction tomography of HSbOI allowed the construction of the initial structural model, followed by powder Rietveld refinement to reach the final structure. The cationic cluster is characterized by the presence of acidic protons on its surface due to substantial Sb3+ deficiencies, which enables HSbOI to serve as an excellent solid acid catalyst. These results open up a frontier for the exploration and functionalization of cationic metal-oxo clusters containing heavy main group elements.
Journal
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- Science Advances
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Science Advances 8 (24), 2022-06
American Association for the Advancement of Science (AAAS)