A low-energy electron diffraction analysis of the (√3 x √3) R30° structure of 
molecular nitrogen adsorbed on Ru(0001)

Bludau, Horst; Gierer, Martin; Over, Herbert; Ertl, Gerhard

doi:10.1016/0009-2614(94)00101-4

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A low-energy electron diffraction analysis of the (√3 x √3) R30° structure of molecular nitrogen adsorbed on Ru(0001)

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Bludau, Horst
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Gierer, Martin
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Over, Herbert
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Ertl, Gerhard
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Bludau, H., Gierer, M., Over, H., & Ertl, G. (1994). A low-energy electron diffraction analysis of the (√3 x √3) R30° structure of molecular nitrogen adsorbed on Ru(0001). Chemical Physics Letters, 219(5-6), 452-456. doi:10.1016/0009-2614(94)00101-4.

Cite as: https://hdl.handle.net/21.11116/0000-0009-9A0D-C

Abstract

The structural parameters of the R30° overlayer formed by N₂ adsorption on Ru(0001) have been determined by a LEED IV analysis. The N₂ molecules are coordinated to the surface at on-top sites with the interatomic axis perpendicular to the surface. The N-N bond length turns out to be 1.10±0.04 Å which equals the bond length of gaseous N₂. The interaction of N₂ with Ru(0001) is characterized by a lack of pronounced substrate distortions.