期刊
CHEMICAL PHYSICS LETTERS
卷 487, 期 4-6, 页码 204-208出版社
ELSEVIER
DOI: 10.1016/j.cplett.2010.01.050
关键词
-
资金
- Natural Science Foundation of China [20853001]
Vanadium-doped small silicon clusters, VSin- and V2Sin- (n = 3-6), have been studied by anion photoelectron spectroscopy. The vertical detachment energies (VDEs) and adiabatic detachment energies (ADEs) of these clusters were obtained from their photoelectron spectra. We have also conducted density-functional calculations of VSin- and V2Sin- clusters and determined their structures by comparison of theoretical calculations with experimental results. Our results show that two V atoms in V2Sin- clusters tend to form a strong V-V bond. V2Si6- has D-3d symmetry with the six Si atoms forming a chair like six-membered ring similar to the ring in cyclohexane and the two vanadium atoms are joined with a delta bond. (C) 2010 Elsevier B.V. All rights reserved.
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