On-Surface Synthesis and Characterization of Acene-Based Nanoribbons Incorporating Four-Membered Rings
Sanchez-Sanchez C, Dienel T, Nicolai A, Kharche N, Liang L, Daniels C, Meunier V, Liu J, Feng X, Muellen K, Ramon Sanchez-Valencia J, Groening O, Ruffieux P, Fasel R (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 25
Pages Range: 12074-12082
Journal Issue: 52
Abstract
A bottom up method for the synthesis of unique tetracene-based nanoribbons, which incorporate cyclobutadiene moieties as linkers between the acene segments, is reported. These structures were achieved through the formal [2+2] cycloaddition reaction of ortho-functionalized tetracene precursor monomers. The formation mechanism and the electronic and magnetic properties of these nanoribbons were comprehensively studied by means of a multitechnique approach. Ultra-high vacuum scanning tunneling microscopy showed the occurrence of metal-coordinated nanostructures at room temperature and their evolution into nanoribbons through formal [2+2] cycloaddition at 475 K. Frequency-shift non-contact atomic force microscopy images clearly proved the presence of bridging cyclobutadiene moieties upon covalent coupling of activated tetracene molecules. Insight into the electronic and vibrational properties of the so-formed ribbons was obtained by scanning tunneling microscopy, Raman spectroscopy, and theoretical calculations. Magnetic properties were addressed from a computational point of view, allowing us to propose promising candidates to magnetic acene-based ribbons incorporating four-membered rings. The reported findings will increase the understanding and availability of new graphene-based nanoribbons with high potential in future spintronics.
Involved external institutions
Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa) / Swiss Federal Laboratories for Materials Science & Technology
Switzerland (CH)
Rensselaer Polytechnic Institute (RPI)
United States (USA) (US)
Technische Universität Dresden
Germany (DE)
Max-Planck-Institut für Polymerforschung (MPI-P) / Max Planck Institute for Polymer Research
Germany (DE)
Switzerland (CH)
Rensselaer Polytechnic Institute (RPI)
United States (USA) (US)
Technische Universität Dresden
Germany (DE)
Max-Planck-Institut für Polymerforschung (MPI-P) / Max Planck Institute for Polymer Research
Germany (DE)
How to cite
APA:
Sanchez-Sanchez, C., Dienel, T., Nicolai, A., Kharche, N., Liang, L., Daniels, C.,... Fasel, R. (2019). On-Surface Synthesis and Characterization of Acene-Based Nanoribbons Incorporating Four-Membered Rings. Chemistry - A European Journal, 25(52), 12074-12082. https://doi.org/10.1002/chem.201901410
MLA:
Sanchez-Sanchez, Carlos, et al. "On-Surface Synthesis and Characterization of Acene-Based Nanoribbons Incorporating Four-Membered Rings." Chemistry - A European Journal 25.52 (2019): 12074-12082.
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