Abstract:
:Intermolecular halogen bonds are ideally suited for designing new molecular assemblies because of their strong directionality and the possibility of tuning the interactions by using different types of halogens or molecular moieties. Due to these unique properties of the halogen bonds, numerous areas of application have recently been identified and are still emerging. Here, we present an approach for controlling the 2D self-assembly process of organic molecules by adsorption to reactive vs. inert metal surfaces. Therewith, the order of halogen bond strengths that is known from gas phase or liquids can be reversed. Our approach relies on adjusting the molecular charge distribution, i.e., the σ-hole, by molecule-substrate interactions. The polarizability of the halogen and the reactiveness of the metal substrate are serving as control parameters. Our results establish the surface as a control knob for tuning molecular assemblies by reversing the selectivity of bonding sites, which is interesting for future applications.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Tschakert J,Zhong Q,Martin-Jimenez D,Carracedo-Cosme J,Romero-Muñiz C,Henkel P,Schlöder T,Ahles S,Mollenhauer D,Wegner HA,Pou P,Pérez R,Schirmeisen A,Ebeling Ddoi
10.1038/s41467-020-19379-4subject
Has Abstractpub_date
2020-11-06 00:00:00pages
5630issue
1issn
2041-1723pii
10.1038/s41467-020-19379-4journal_volume
11pub_type
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