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

The formation of (NO)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 ana...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of chemical physics 2016-08, Vol.145 (5), p.054705-054705
Main Authors: Koshida, H., Okuyama, H., Hatta, S., Aruga, T.
Format: Article
Language:English
Subjects:
Coupling (molecular)
Electron energy loss spectroscopy
Energy dissipation
Isotopes
Oscillators
Trimers
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The formation of (NO)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 N16O and N18O, 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)3 on Cu(111).
ISSN:0021-9606
1089-7690
DOI:10.1063/1.4960053