Abstract
Adsorption and diffusion of isolated water molecules such as monomers and dimers on Pt(1 1 1) surface were directly observed by the scanning tunneling microscopy (STM) at very low coverage and at low temperature. A water dimer appears as a 6-fold symmetric “flower-like” protrusion, which can be explained based on the model that a hydrogen bond acceptor molecule in the dimer is rotating around a donor molecule. We obtained vibrational spectrum of individual water dimers by means of single-molecule vibrational spectroscopic method from the vibrationally-induced lateral hopping motions. Analyzing the spectra suggests a detailed model for adsorption structure of a water dimer where an acceptor molecule of the dimer points toward the surface to form O–H–Pt hydrogen bonding.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
