José I. Urgel¹, Marco Di Giovannantonio¹, Guido Gandus¹, Qiang Chen², Xunshan Liu³, Hironobu Hayashi⁴, Pascal Ruffieux¹, Silvio Decurtins³, Akimitsu Narita⁵, Daniele Passerone¹, Hiroko Yamada⁴, Shi‐Xia Liu³, Klaus Müllen⁶, Carlo A. Pignedoli^1*, Roman Fasel^1*

1 nanotech@surfaces Laboratory, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600, Dübendorf, Switzerland

2 Max Planck Institute for Polymer Research, 55128, Mainz, Germany

3 Department of Chemistry and Biochemistry, University of Bern, 3012, Bern, Switzerland

4 Division of Materials Science, Graduate School of Science and Technology Nara Institute of Science and Technology (NAIST) 8916-5 Takayama-cho, Ikoma, 630-0192, Japan

5 Max Planck Institute for Polymer Research, 55128, Mainz, Germany and Organic and Carbon Nanomaterials Unit, Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son, Kunigami, Okinawa, 904-0495, Japan

6 Max Planck Institute for Polymer Research, 55128, Mainz, Germany and Institute of Physical Chemistry, Johannes Gutenberg-Universität Mainz, 55128, Mainz, Germay

* Corresponding authors emails: carlo.pignedoli@empa.ch, roman.fasel@empa.ch

DOI10.24435/materialscloud:2019.0056/v1 [version v1]

Publication date: Oct 10, 2019

How to cite this record

José I. Urgel, Marco Di Giovannantonio, Guido Gandus, Qiang Chen, Xunshan Liu, Hironobu Hayashi, Pascal Ruffieux, Silvio Decurtins, Akimitsu Narita, Daniele Passerone, Hiroko Yamada, Shi‐Xia Liu, Klaus Müllen, Carlo A. Pignedoli, Roman Fasel, Overcoming steric hindrance in aryl-aryl homocoupling via on-surface copolymerization, Materials Cloud Archive 2019.0056/v1 (2019), https://doi.org/10.24435/materialscloud:2019.0056/v1

Description

On‐surface synthesis is a unique tool for growing low‐dimensional carbon nanomaterials with precise structural control down to the atomic level. One of the most applied reactions to covalently interlink molecular precursors is dehalogenative aryl‐aryl coupling. Failures in this process are often related to the steric hindrance between reactants, which may arise due to their coplanarity upon adsorption on a surface. In a recent work we proposed a copolymerization approach to overcome the limitations that prevent intermolecular homocoupling. We used suitable linkers as additional reactants to demonstrate formation of fully conjugated polycyclic nanowires incorporating non‐benzenoid rings. This record contains data to support the experimental and theoretical evidences discussed in the manuscript.

Materials Cloud sections using this data

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Read_YAML.ipynb MD5md5:0b0f0b7becf356e28bc102f693d2a2b0	14.5 KiB	example of jupyter notebook to read the README.yaml file, extract files from the tar and plot the raw version of experimental images

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External references

Keywords

MARVEL/DD3 MARVEL ab initio scanning probe microscopy on surface synthesis nanomaterials