title: Imaging covalent bonding between two NO molecules on Cu(110).
abstract: Using a scanning tunneling microscope, we found metastable upright NO on Cu(110) with the 2π* molecular resonance at the Fermi level. Upon heating above 40 K, it converts to a bent structure with the loss of molecular resonance. By manipulating the distance between two upright NO, we controlled the overlap between 2π* orbitals and observed its splitting below and above the Fermi level, thus visualizing the covalent interaction between them.
authors.affiliation: Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Shiotari
authors.forename: Y
authors.initials: Y
authors.lastname: Kitaguchi
authors.forename: H
authors.initials: H
authors.lastname: Okuyama
authors.forename: S
authors.initials: S
authors.lastname: Hatta
authors.forename: T
authors.initials: T
authors.lastname: Aruga