Molecular Adsorption Bond Lengths at Metal Oxide Surfaces: Failure of Current Theoretical Methods
- 1 August 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 87 (8), 086101
- https://doi.org/10.1103/physrevlett.87.086101
Abstract
New experimental structure determinations for molecular adsorbates on NiO(100) reveal much shorter Ni-C and Ni-N bond lengths for adsorbed CO and as well as NO (2.07, 1.88, 2.07 Å) than previously computed theoretical values, with discrepancies up to 0.79 Å, highlighting a major weakness of current theoretical descriptions of oxide-molecule bonding. Comparisons with experimentally determined bond lengths of the same species adsorbed atop Ni on metallic Ni(111) show values on the oxide surface that are consistently larger (0.1–0.3 Å) than on the metal, indicating somewhat weaker bonding.
Keywords
This publication has 19 references indexed in Scilit:
- QUANTUM CHEMISTRY OF OXIDE SURFACES: FROM CO CHEMISORPTION TO THE IDENTIFICATION OF THE STRUCTURE AND NATURE OF POINT DEFECTS ON MgOSurface Review and Letters, 2000
- Reply to Comment on “First principles determination of the bonding mechanism and adsorption energy for CO/MgO(001)”Chemical Physics Letters, 1999
- Comment on “First-principles determination of the bonding mechanism and adsorption energy for CO/MgO(001)” [Chem. Phys. Lett. 290 (1998) 255]Chemical Physics Letters, 1999
- Molecules on oxide surfaces: a quantitative structural determination of NO adsorbed on NiO(100)Surface Science, 1999
- TDS study of the bonding of CO and NO to vacuum-cleaved NiO(100)Surface Science, 1999
- Adsorbate structure determination on surfaces using photoelectron diffractionReports on Progress in Physics, 1994
- A photoelectron diffraction study of the structure of PF3 adsorbed on Ni{in111}Chemical Physics Letters, 1992
- Ab initio calculations for the adsorption of small molecules on metal oxide surfaces. I. Cluster calculations for carbon monoxide CO on nickel oxide NiO(100)The Journal of Chemical Physics, 1992
- Characterization of oxide surfaces by infrared spectroscopy of adsorbed carbon monoxide: a theoretical investigation of the frequency shift of CO on MgO and NiOSurface Science, 1991
- Molecular adsorption on oxide surfaces: Electronic structure and orientation of NO on NiO(100)/Ni(100) and on NiO(100) as determined from electron spectroscopies andab initiocluster calculationsPhysical Review B, 1991