Structural characterisation of molecular conformation and the incorporation of adatoms in an on-surface Ullmann-type reaction
Publication Date
November 3, 2020
Creators
Description
The on-surface synthesis of covalently bonded materials differs from solution-phase synthesis in several respects. The transition from a three-dimensional reaction volume to quasi two-dimensional confinement, as is the case for on-surface synthesis, has the potential to facilitate alternative reaction pathways to those available in solution. Ullmann-type reactions, where the surface plays a role in the coupling of aryl-halide functionalised species, has been shown to facilitate extended one- and two-dimensional structures. Here we employ a combination of scanning tunnelling microscopy (STM), X-ray photoelectron spectroscopy (XPS) and X-ray standing wave (XSW) analysis to perform a chemical and structural characterisation of the Ullmann-type coupling of two iodine functionalised species on a Ag(111) surface held under ultra-high vacuum (UHV) conditions. Our results allow characterisation of molecular conformations and adsorption geometries within an on-surface reaction and provide insight into the incorporation of metal adatoms within the intermediate structures of the reaction.
Collection dates:
10/10/2018 - 07/12/2018
19/07/2018 - 24/07/2018
1/09/2019-19/09/2019
Subjects
Subjects (JACS)
Subjects (LC)
Divisions
University of Nottingham, UK Campus::Faculty of Science::School of Physics and Astronomy
Data type
Scanning tunnelling microscopy (STM) images; X-ray photoelectron spectroscopy (XPS) data; Normal incidence X-ray standing wave (NIXSW) data
Funders
Royal Society University Research Fellowship
Grant Number
EP/N033906/1
SI18752
Data collection method
Omicron STM-1 RT-UHV system; Synchrotron X-ray source (Diamond Light Source)
Resource languages
English
Publisher
The University of Nottingham
Date Issued
November 3, 2020
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Name
Structural Characterisation Data.zip
Size
1.85 GB
Format
Unknown
Checksum (MD5)
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