Abstract
The local adsorption structure formed by the interaction of cytosine with a Cu(110) surface, following adsorption at ∼300 K and annealing to ∼420 K, has been investigated by O 1s and N 1s scanned-energy mode photoelectron diffraction (PhD). Initial characterization by soft-X-ray photoelectron spectroscopy and O K-edge near-edge X-ray absorption fine structure (NEXAFS) indicates that chemisorption leads to dehydrogenation of the NH species in the molecular ring and indicates that the molecular plane is perpendicular to the surface and close to the [110] azimuth. The PhD results confirm this orientation and show that the molecule bonds to the surface through the deprotonated N atom and the O atom, both of which occupy off-atop sites. The associated Cu−N and Cu−O bondlengths are 1.94(+0.07/−0.03) A and 1.94(+0.06/−0.04) A, respectively. Density functional theory calculations provide further support for this local structure and provide information on the possible role of intermolecular interaction. Possible ...
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.
