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Orientation and bond length of molecular oxygen on Ag(110) and Pt(111): A near-edge x-ray-absorption fine-structure study
Abstract
Near-edge x-ray-absorption fine-structure studies of ${\mathrm{O}}_{2}$ chemisorbed on Ag(110) and Pt(111) surfaces near 100 K reveal different predissociation stages of molecular oxygen. ${\mathrm{O}}_{2}$ on Ag(110) exhibits only a ${\ensuremath{\sigma}}^{\mathrm{*}}$ resonance and resembles a single-bonded peroxo species. The O-O bond is aligned parallel to the surface, along the [11\ifmmode\bar\else\textasciimacron\fi{}0] azimuth, with a bond length of 1.47\ifmmode\pm\else\textpm\fi{}0.05 A\r{}. ${\mathrm{O}}_{2}$ on Pt(111) also lies down but is less perturbed from the gas phase as revealed by the presence of a ${\ensuremath{\pi}}^{\mathrm{*}}$ resonance and an O-O bond length at 1.32\ifmmode\pm\else\textpm\fi{}0.05 A\r{}, characteristic of a superoxo species.
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Citations
Cited by
Single-Molecule Dissociation by Tunneling Electrons
Stipe, B. C., Rezaei, M. A., Ho, W., Gao, S., Persson, M., & Lundqvist, B. I. (1997) · Physical Review Letters · doi:10.1103/physrevlett.78.4410 · Cited by 621
Puglia, C., Nilsson, A., Hernnäs, B., Karis, O., Bennich, P., & Mårtensson, N. (1995) · Surface Science · doi:10.1016/0039-6028(95)00798-9 · Cited by 306
Existence of a “Hot” Atom Mechanism for the Dissociation ofO2on Pt(111)
Wintterlin, J., Schuster, R., & Ertl, G. (1996) · Physical Review Letters · doi:10.1103/physrevlett.77.123 · Cited by 296
Concepts in Theoretical Heterogeneous Catalytic Reactivity
VAN SANTEN, R. A., & NEUROCK, M. (1995) · Catalysis Reviews · doi:10.1080/01614949508006451 · Cited by 289
Hyman, M. P., & Medlin, J. W. (2005) · The Journal of Physical Chemistry B · doi:10.1021/jp045155y · Cited by 150
Metadata
- Authors
- Outka, D. A., Stöhr, J., Jark, W., Stevens, P., Solomon, J., & Madix, R. J.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 1987-03-15
- Volume
- 35
- Issue
- 8
- Pages
- 4119-4122
- ISSN
- 0163-1829 (ISSN-L)
- OpenAlex
- W2064764822
- Cited by
- 256
- References
- 0
- FWCI
- 21.45
- Type
- journal article
- Language
- en
- Open access
- closed
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- Outka, D. A., Stöhr, J., Jark, W., Stevens, P., Solomon, J., & Madix, R. J. (1987). Orientation and bond length of molecular oxygen on Ag(110) and Pt(111): A near-edge x-ray-absorption fine-structure study. Physical Review B. https://doi.org/10.1103/physrevb.35.4119
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