Supramolecular architectures of molecularly thin yet robust free-standing layers

Moradi, Mina and Opara, Nadia L. and Tulli, Ludovico G. and Wäckerlin, Christian and Dalgarno, Scott J. and Teat, Simon J. and Baljozovic, Milos and Popova, Olha and van Genderen, Eric and Kleibert, Armin and Stahlberg, Henning and Abrahams, Jan Pieter and Padeste, Celestino and Corvini, Philippe F.-X. and Jung, Thomas A. and Shahgaldian, Patrick. (2019) Supramolecular architectures of molecularly thin yet robust free-standing layers. Science Advances, 5 (2). eaav4489.

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Official URL: https://edoc.unibas.ch/75801/

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Stable, single-nanometer thin, and free-standing two-dimensional layers with controlled molecular architectures are desired for several applications ranging from (opto-)electronic devices to nanoparticle and single-biomolecule characterization. It is, however, challenging to construct these stable single molecular layers via self-assembly, as the cohesion of those systems is ensured only by in-plane bonds. We herein demonstrate that relatively weak noncovalent bonds of limited directionality such as dipole-dipole (-CN⋅⋅⋅NC-) interactions act in a synergistic fashion to stabilize crystalline monomolecular layers of tetrafunctional calixarenes. The monolayers produced, demonstrated to be free-standing, display a well-defined atomic structure on the single-nanometer scale and are robust under a wide range of conditions including photon and electron radiation. This work opens up new avenues for the fabrication of robust, single-component, and free-standing layers via bottom-up self-assembly.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Structural Biology & Biophysics > Nano-diffraction of Biological Specimen (Abrahams)
05 Faculty of Science > Departement Physik > Physik
05 Faculty of Science > Departement Biozentrum > Former Organization Units Biozentrum > Structural Biology (Stahlberg)
UniBasel Contributors:Abrahams, Jan Pieter and Moradi, Mina and Jung, Thomas A. and Stahlberg, Henning
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Association for the Advancement of Science
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:04 May 2023 08:18
Deposited On:30 Mar 2020 11:39

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