Does F 4 TCNQ Adsorption on Cu(111) Form a 2D-MOF?

Autor: Ding P; Department of Physics, University of Warwick, Coventry CV4 7AL, U.K.; Laboratory for Space Environment and Physical Sciences, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China., Braim M; Department of Physics, University of Warwick, Coventry CV4 7AL, U.K., Hobson AL; Department of Physics, University of Warwick, Coventry CV4 7AL, U.K.; Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxford OX11 0DE, U.K., Rochford LA; Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxford OX11 0DE, U.K., Ryan PTP; Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxford OX11 0DE, U.K.; Department of Materials, Imperial College London, London SW7 2AZ, U.K., Duncan DA; Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxford OX11 0DE, U.K., Lee TL; Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxford OX11 0DE, U.K., Hussain H; Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxford OX11 0DE, U.K., Costantini G; Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.; School of Chemistry, University of Birmingham, Birmingham B15 2TT, U.K., Yu M; Laboratory for Space Environment and Physical Sciences, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China., Woodruff DP; Department of Physics, University of Warwick, Coventry CV4 7AL, U.K.
Jazyk: angličtina
Zdroj: The journal of physical chemistry. C, Nanomaterials and interfaces [J Phys Chem C Nanomater Interfaces] 2023 Oct 12; Vol. 127 (42), pp. 20903-20910. Date of Electronic Publication: 2023 Oct 12 (Print Publication: 2023).
DOI: 10.1021/acs.jpcc.3c04927
Abstrakt: The results of a quantitative experimental structural investigation of the adsorption phases formed by 2,3,5,6-tetrafluoro-7,7',8,8'-tetracyanoquinodimethane (F 4 TCNQ) on Cu(111) are reported. A particular objective was to establish whether Cu adatoms are incorporated into the molecular overlayer. A combination of normal incidence X-ray standing waves, low-energy electron diffraction, scanning tunneling microscopy, and X-ray photoelectron spectroscopy measurements, complemented by dispersion-inclusive density functional theory calculations, demonstrates that F 4 TCNQ on Cu(111) does cause Cu adatoms to be incorporated into the overlayer to form a two-dimensional metal-organic framework (2D-MOF). This conclusion is shown to be consistent with the behavior of F 4 TCNQ adsorption on other coinage metal surfaces, despite an earlier report concluding that the adsorption structure on Cu(111) is consistent with the absence of any substrate reconstruction.
Competing Interests: The authors declare no competing financial interest.
(© 2023 The Authors. Published by American Chemical Society.)
Databáze: MEDLINE
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