Controlling the bonding of CO on cobalt clusters by coadsorption of H2

被引:19
|
作者
Swart, Ingmar
Fielicke, Andre
Rayner, David M.
Meijer, Gerard
Weckhuysen, Bert M.
de Groot, Frank M. F.
机构
[1] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany
[2] Univ Utrecht, Fac Sci, Dept Chem, NL-3584 CA Utrecht, Netherlands
[3] Natl Res Council Canada, Steacie Inst Mol Sci, Ottawa, ON K1A 0R6, Canada
关键词
carbon monoxide; cluster compounds; coadsorption; cobalt; IR spectroscopy;
D O I
10.1002/anie.200605165
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
H in control (of the electrons): The bond strength of CO on small cationic cobalt clusters, as indicated by the C-O stretching band in the IR spectrum, can be precisely controlled by coadsorption of H2 molecules. Each coadsorbed H atom reduces the electron density available for back-donation by about 0.09-0.25 electrons, depending on cluster size. (Graph Presented). © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:5317 / 5320
页数:4
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