Na-induced bonding and bond-length changes for CO on Pt(111): A near-edge x-ray-absorption fine-structure study
Journal Article
·
· Phys. Rev. Lett.; (United States)
Near-edge x-ray absorption fine-structure studies above the C and O K edges for CO on Pt(111) reveal a 4-eV shift of the sigma shape resonance when Na(0.2 monolayer) is coabsorbed. This allows determination of a Na-induced (0.12 +- 0.03)-A expansion of the C-O bond. Na does not affect the vertical molecular orientation on the surface. Reduction and broadening of the 1s..-->..2..pi..( resonance and the CO bond lengthening in the presence of Na signifies substantially increased metal to CO backbonding.
- Research Organization:
- AT and T Bell Laboratories, Murray Hill, New Jersey 07974
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 6063527
- Journal Information:
- Phys. Rev. Lett.; (United States), Vol. 54:9
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
CARBON MONOXIDE
ADSORPTION
PLATINUM
SORPTIVE PROPERTIES
SODIUM
ABSORPTION SPECTRA
BOND LENGTHS
CATALYSIS
CHEMICAL BONDS
CRYSTAL STRUCTURE
EXPERIMENTAL DATA
FINE STRUCTURE
MODIFICATIONS
RESONANCE ABSORPTION
SPECTRAL SHIFT
X-RAY SPECTRA
ABSORPTION
ALKALI METALS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
DATA
DIMENSIONS
ELEMENTS
INFORMATION
LENGTH
METALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
SORPTION
SPECTRA
SURFACE PROPERTIES
TRANSITION ELEMENTS
360602* - Other Materials- Structure & Phase Studies
CARBON MONOXIDE
ADSORPTION
PLATINUM
SORPTIVE PROPERTIES
SODIUM
ABSORPTION SPECTRA
BOND LENGTHS
CATALYSIS
CHEMICAL BONDS
CRYSTAL STRUCTURE
EXPERIMENTAL DATA
FINE STRUCTURE
MODIFICATIONS
RESONANCE ABSORPTION
SPECTRAL SHIFT
X-RAY SPECTRA
ABSORPTION
ALKALI METALS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
DATA
DIMENSIONS
ELEMENTS
INFORMATION
LENGTH
METALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
SORPTION
SPECTRA
SURFACE PROPERTIES
TRANSITION ELEMENTS
360602* - Other Materials- Structure & Phase Studies