期刊
CHEMPHYSCHEM
卷 15, 期 5, 页码 862-865出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.201400011
关键词
cluster structure; density functional theory; electron diffraction; octahedral geometries; ruthenium
资金
- BMBF through the Helmholtz Research Program POF NanoMikro
- Fonds der Chemischen Industrie
We describe the first direct structural characterization of medium-sized ruthenium clusters (Ru-19(-), Ru-28(-), Ru-38(-), and Ru-44(-)) by using a combination of trapped ion electron diffraction and density functional theory. We find close-packed structures based on octahedral geometries: Ru-19(-) and Ru-44(-) are closed-shell octahedra whereas Ru-28(-) is a double octahedron. In the case of Ru-38(-), instead of a truncated octahedron we obtain evidence for lower symmetry structures containing a reentrant surface.
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