On-Surface Synthesis and Characterization of Triply Fused Porphyrin-Graphene Nanoribbon Hybrids.
- Mateo LM Departamento de Química Orgánica, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049, Madrid, Spain.
- Sun Q nanotech@surfaces Laboratory, Empa-Swiss Federal Laboratories for Materials Science and Technology, 8600, Dübendorf, Switzerland.
- Liu SX Department of Chemistry and Biochemistry, University of Bern, 3012, Bern, Switzerland.
- Bergkamp JJ Department of Chemistry and Biochemistry, California State University Bakersfield, 9001 Stockdale Highway, Bakersfield, CA, USA.
- Eimre K nanotech@surfaces Laboratory, Empa-Swiss Federal Laboratories for Materials Science and Technology, 8600, Dübendorf, Switzerland.
- Pignedoli CA nanotech@surfaces Laboratory, Empa-Swiss Federal Laboratories for Materials Science and Technology, 8600, Dübendorf, Switzerland.
- Ruffieux P nanotech@surfaces Laboratory, Empa-Swiss Federal Laboratories for Materials Science and Technology, 8600, Dübendorf, Switzerland.
- Decurtins S Department of Chemistry and Biochemistry, University of Bern, 3012, Bern, Switzerland.
- Bottari G Departamento de Química Orgánica, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049, Madrid, Spain.
- Fasel R nanotech@surfaces Laboratory, Empa-Swiss Federal Laboratories for Materials Science and Technology, 8600, Dübendorf, Switzerland.
- Torres T Departamento de Química Orgánica, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049, Madrid, Spain.
- 2019-11-16
Published in:
- Angewandte Chemie (International ed. in English). - 2020
Ullmann-type coupling
graphene nanoribbon (GNR)
hybrid nanostructures
on-surface synthesis
porphyrin
English
On-surface synthesis offers a versatile approach to prepare novel carbon-based nanostructures that cannot be obtained by conventional solution chemistry. Graphene nanoribbons (GNRs) have potential for a variety of applications. A key issue for their application in molecular electronics is in the fine-tuning of their electronic properties through structural modifications, such as heteroatom doping or the incorporation of non-benzenoid rings. In this context, the covalent fusion of GNRs and porphyrins (Pors) is a highly appealing strategy. Herein we present the selective on-surface synthesis of a Por-GNR hybrid, which consists of two Pors connected by a short GNR segment. The atomically precise structure of the Por-GNR hybrid has been characterized by bond-resolved scanning tunneling microscopy (STM) and noncontact atomic force microscopy (nc-AFM). The electronic properties have been investigated by scanning tunneling spectroscopy (STS), in combination with DFT calculations, which reveals a low electronic gap of 0.4 eV.
- Language
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- English
- Open access status
- green
- Identifiers
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- DOI 10.1002/anie.201913024
- PMID 31729821
- Persistent URL
- https://folia.unifr.ch/global/documents/239684
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