Marco Di Giovannantonio¹, Qiang Chen², José I. Urgel¹, Pascal Ruffieux¹, Carlo A. Pignedoli^1*, Klaus Müllen^2,3, Akimitsu Narita^2,4, Roman Fasel^1,5*

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

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

3 Institute of Physical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany

4 Organic and Carbon Nanomaterials Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa 904-0495, Japan

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

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

DOI10.24435/materialscloud:de-2x [version v1]

Publication date: Oct 12, 2020

How to cite this record

Marco Di Giovannantonio, Qiang Chen, José I. Urgel, Pascal Ruffieux, Carlo A. Pignedoli, Klaus Müllen, Akimitsu Narita, Roman Fasel, On-surface synthesis of oligo(indenoindene), Materials Cloud Archive 2020.114 (2020), doi: 10.24435/materialscloud:de-2x.

Description

In this record we provide data to support our recent work on the synthesis of oligo(indenoindene). Fully conjugated ladder polymers (CLP) possess unique optical and electronic properties and are considered promising materials for applications in (opto)electronic devices. Poly(indenoindene) is a CLP consisting of an alternating array of five- and six-membered rings, which has remained elusive so far. Our results relate to on-surface synthesis of oligo(indenoindene) on Au(111). Its structure and a low electronic band gap have been elucidated by low-temperature scanning tunneling microscopy and spectroscopy and noncontact atomic force microscopy, complemented by density functional theory calculations. Achieving defect-free segments of oligo(indenoindene) offers exclusive insight into this CLP and provides the basis to further synthetic approaches.

Materials Cloud sections using this data

Files

File name	Size	Description
ReadMe.yaml MD5md5:cec70ea71bc83271871f3cfdb8f3a5e2	13.4 KiB	ReadMe file in yaml format listing all files contained in the record
data.tgz MD5md5:db0dec74a511cec2d78e2f53a0ff689b	25.0 MiB	Archive file with experimental data
dft_calculations.aiida MD5md5:6313728a380f03d87ef5b8b50c6816ba Open this AiiDA archive on renkulab.io (https://renkulab.io/)	490.6 MiB	Archive with nodes for the provenance of calculations done with AiiDA

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External references

Keywords

oligomers alkyls polymers MARVEL/DD3 SNSF CSCS