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).
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7 August 2016
Research Article|
August 02 2016
Vibrational spectroscopic evidence for (NO)3 formation on Cu(111) Available to Purchase
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J. Chem. Phys. 145, 054705 (2016)
Article history
Received:
May 26 2016
Accepted:
July 18 2016
Citation
H. KoshidaH. OkuyamaS. HattaT. Aruga; Vibrational spectroscopic evidence for (NO)3 formation on Cu(111). J. Chem. Phys. 7 August 2016; 145 (5): 054705. https://doi.org/10.1063/1.4960053
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