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Title: Configuration change of NO on Cu(110) as a function of temperature

The bonding structure of nitric oxide (NO) on Cu(110) is studied by means of scanning tunneling microscopy, reflection absorption infrared spectroscopy, and electron energy loss spectroscopy at 6–160 K. At low temperatures, the NO molecule adsorbs at the short bridge site via the N end in an upright configuration. At around 50 K, this turns into a flat configuration, in which both the N and O atoms interact with the surface. The flat configuration is characterized by the low-frequency N–O stretching mode at 855 cm{sup −1}. The flat-lying NO flips back and forth when the temperature increases to ∼80 K, and eventually dissociates at ∼160 K. We propose a potential energy diagram for the conversion of NO on the surface.
Authors:
; ; ; ;  [1] ; ;  [2]
  1. Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)
  2. The Institute for Solid State Physics, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan)
Publication Date:
OSTI Identifier:
22304208
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Chemical Physics; Journal Volume: 140; Journal Issue: 21; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION; ABSORPTION SPECTROSCOPY; ATOMS; BONDING; ELECTRONS; ENERGY-LOSS SPECTROSCOPY; INFRARED SPECTRA; MOLECULES; NITRIC OXIDE; POTENTIAL ENERGY; SCANNING TUNNELING MICROSCOPY; TEMPERATURE DEPENDENCE