Molecular Orbital View of Chemisorption. A Summary

A schematic illustration that summarizes the essential electronic structure features that determine chemisorption was proposed by Hoffmann l and is reproduced here in Fig. 3.35. In the weak adsorption limit interactions (1) and (2) represent the attractive HOMO-LUMO interactions described in Section 3.3. Interaction (3) between the doubly occupied 

6 Elementary Reaction Steps on Ttansition-Metal Siurfaces. Trends with Position of a Metal in the Periodic Table 

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