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  The atomic geometries of Cs and K adsorbed on Pd(111): the important role of the ionization potential of the substrate for the bonding

Kim, Y. D., Schwegmann, S., & Over, H. (1999). The atomic geometries of Cs and K adsorbed on Pd(111): the important role of the ionization potential of the substrate for the bonding. Physical Chemistry Chemical Physics, 1(8), 2001-2005. doi:10.1039/A809068H.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0008-DD68-B Version Permalink: https://hdl.handle.net/21.11116/0000-0008-DD69-A
Genre: Journal Article

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 Creators:
Kim, Young Dok1, Author           
Schwegmann, Stefan1, Author           
Over, Herbert1, Author           
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              

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 Abstract: Detailed LEED analyses provide structural data of the K and Cs overlayers on Pd(111) with (2×2) and (√3×√3)R30° periodicity. The alkali metal (AM)–Pd layer bond lengths and therefore the AM radii turned out to be 0.1 and 0.2 Å smaller on Pd(111) compared to related AM systems on Rh(111) and Ru(0001), respectively. This suggests a stronger AM–substrate bonding on Pd(111) than on Ru(0001) and Rh(111), which is also reflected by the thermal stability of the AM overlayers against desorption. The trend in the AM–substrate bond strengths follows the trend in the ionization potential of the substrates. This effect may support the AM–substrate bonding to be of charge transfer type.

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Language(s): eng - English
 Dates: 1998-11-191999-02-151999
 Publication Status: Issued
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1039/A809068H
 Degree: -

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Title: Physical Chemistry Chemical Physics
  Abbreviation : Phys. Chem. Chem. Phys.
Source Genre: Journal
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Publ. Info: Cambridge, England : Royal Society of Chemistry
Pages: 5 Volume / Issue: 1 (8) Sequence Number: - Start / End Page: 2001 - 2005 Identifier: ISSN: 1463-9076
CoNE: https://pure.mpg.de/cone/journals/resource/954925272413_1