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Journal Article

Compressed benzene on Ni(110)


Schedel-Niedrig,  Thomas
Fritz Haber Institute, Max Planck Society;

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Ramsey, M., Steinmüller, D., Netzer, F., Schedel-Niedrig, T., Santaniello, A., & Lloyd, D. (1991). Compressed benzene on Ni(110). Surface Science, 251-252, 979-984. doi:10.1016/0039-6028(91)91136-L.

Cite as: https://hdl.handle.net/21.11116/0000-000A-09F9-4
The adsorption of benzene on Ni(110) provides an example of benzene in a significantly crowded surface configuration. This is shown from studies with angle resolved photoemission, near-edge X ray absorption fine structure, LEED and thermal desorption spectroscopy. The benzene molecules are incorporated in a well-ordered, densely packed c(4 × 2) overlayer with preferential azimuthal orientation. It is suggested that compressive intermolecular interaction induces C2v symmetry of the flat lying molecules. The high packing density in the overlayer leads to a considerable orbital overlap, which is reflected in a large C-H band dispersion of 0.75 eV.