Vibrational spectroscopic evidence for (NO){sub 3} formation on Cu(111)

Journal Article · Sun Aug 07 04:00:00 EDT 2016 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4960053· OSTI ID:22679036

Koshida, H.; Hatta, S.; Aruga, T. ^[1]

---

1. Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)

The formation of (NO){sub 3} on Cu(111) was recently reported based on scanning tunneling microscopy observations [A. Shiotari et al., J. Chem. Phys. 141, 134705 (2014)]. We herein report studies into this system using electron energy loss spectroscopy and verify the above findings through vibrational analysis. For the surface covered with mixed isotopes of N{sup 16}O and N{sup 18}O, we observed four peaks corresponding to N-O stretching vibrations, which were ascribed to the four isotopic combinations of the trimer. Dynamic coupling within the trimer was evaluated from model calculations of the coupled oscillators. Furthermore, we observed hindered rotation and translation modes in the dipole scattering regime, suggesting that the molecular axis is tilted from the surface normal. These results provide spectroscopic support for the formation of (NO){sub 3} on Cu(111).

• OSTI ID: 22679036
• Journal Information: Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 5 Vol. 145; ISSN JCPSA6; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
CATALYST SUPPORTS
COPPER
CRYSTAL LATTICES
CRYSTALS
ENERGY LOSSES
ENERGY-LOSS SPECTROSCOPY
EXPERIMENTAL DATA
ISOTOPES
SCANNING TUNNELING MICROSCOPY
SURFACES
TUNNEL EFFECT