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Author Shiotari, A. ♦ Hatta, S. ♦ Okuyama, H. ♦ Aruga, T.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ DIMERS ♦ FCC LATTICES ♦ MOLECULES ♦ MONOMERS ♦ NITRIC OXIDE ♦ SCANNING TUNNELING MICROSCOPY ♦ TRIANGULAR CONFIGURATION
Abstract We report that NO molecules unexpectedly prefer a trimeric configuration on Cu(111). We used scanning tunneling microscopy (STM) at 6 K, and confirmed that the NO molecule is bonded to the face-centered-cubic hollow site in an upright configuration. The individual NO molecule is imaged as a ring protrusion, which is characteristic of the doubly degenerate 2π{sup *} orbital. A triangular trimer is thermodynamically more favorable than the monomer and dimer, and its bonding structure was characterized by STM manipulation. This unique behavior of NO on Cu(111) is ascribed to the threefold symmetry of the surface, facilitating effective mixing of the 2π{sup *} orbitals in a triangular configuration.
ISSN 00219606
Educational Use Research
Learning Resource Type Article
Publisher Date 2014-10-07
Publisher Place United States
Journal Journal of Chemical Physics
Volume Number 141
Issue Number 13


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