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Formation of Metal-Encapsulating Si Cage Clusters
Open accessAbstract
We report the formation of a series of metal-containing hydrogenated silicon clusters using an ion trap. Mass analyses reveal that many types of transition metal ions ${M}^{+}$ ( $M\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}\mathrm{Hf}$, Ta, W, Re, Ir, etc.) react with silane $({\mathrm{SiH}}_{4})$ to form dehydrogenated $M{\mathrm{Si}}_{n}^{\phantom{\rule{0ex}{0ex}}+}$ cluster ions ( $n\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}14$, 13, 12, 11, 9, respectively) as an end product, indicating that the metal atom is endohedral and stabilizes the Si polyhedral cage. This finding is confirmed by our ab initio calculation that ${\mathrm{WSi}}_{12}$ is a W-encapsulating ${\mathrm{Si}}_{12}$ cage cluster, and is very stable owing to both the electronic and the geometrical shell closures.
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Cited by
Super Atomic Clusters: Design Rules and Potential for Building Blocks of Materials
Jena, P., & Sun, Q. (2018) · Chemical Reviews · doi:10.1021/acs.chemrev.7b00524 · Cited by 673
Selective Formation of MSi16(M = Sc, Ti, and V)
Koyasu, K., Akutsu, M., Mitsui, M., & Nakajima, A. (2005) · Journal of the American Chemical Society · doi:10.1021/ja045380t · Cited by 289
Metadata
- Authors
- Hiura, H., Miyazaki, T., & Kanayama, T.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2001-02-26
- Volume
- 86
- Issue
- 9
- Pages
- 1733-1736
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2041512102
- Cited by
- 461
- References
- 16
- FWCI
- 18.70
- Type
- journal article
- Language
- en
- Open access
- green
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