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Instruments / Technical Area	Publication Details	Published	Actions
I09-Surface and Interface Structural Analysis	Structural characterisation of molecular conformation and the incorporation of adatoms in an on-surface Ullmann-type reaction Chris J. Judd , Filipe L. Q. Junqueira , Sarah L. Haddow , Neil R. Champness , David A. Duncan , Robert G. Jones , Alex Saywell Communications Chemistry 3 DOI: 10.1038/s42004-020-00402-0 Diamond Proposal Number(s): [18752] Open Access Show Abstract ▼ Abstract: 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.	Nov 2020

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I09-Surface and Interface Structural Analysis

Structural characterisation of molecular conformation and the incorporation of adatoms in an on-surface Ullmann-type reaction

Chris J. Judd , Filipe L. Q. Junqueira , Sarah L. Haddow , Neil R. Champness , David A. Duncan , Robert G. Jones , Alex Saywell

Communications Chemistry 3

DOI: 10.1038/s42004-020-00402-0

Diamond Proposal Number(s): [18752]