Abstract
Scanned-energy mode photoelectron diffraction results show the adsorption site of molecular water on to be atop under-coordinated surface Ti atoms, confirming the results of total energy calculations and STM imaging. However, the bond length is , much longer than Ti-O bond lengths in strongly chemisorbed species on this surface, but significantly shorter than found in most total energy calculations. The need for theory to describe this weak bond effectively may be a key factor in the controversial problem of understanding this important surface reaction system.
- Received 20 May 2005
DOI:https://doi.org/10.1103/PhysRevLett.95.226104
©2005 American Physical Society