Article On‐Surface Synthesis of Triaza[5]triangulene through Cyclodehydrogenation and its Magnetism

Donglin Li ORCID (Center for Basic Research on Materials, National Institute for Materials Science) ; Orlando J. Silveira ORCID (Department of Applied Physics, Aalto University) ; Takuma Matsuda (Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University) ; Hironobu Hayashi SAMURAI ORCID (Center for Basic Research on Materials, National Institute for Materials Science) ; Hiromitsu Maeda ORCID (Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University) ; Adam S. Foster ORCID (Department of Applied Physics, Aalto University) ; Shigeki Kawai SAMURAI ORCID (Center for Basic Research on Materials, National Institute for Materials Science)

Angew Chem Int Ed - 2024 - Li - On‐Surface Synthesis of Triaza 5 triangulene through Cyclodehydrogenation and its Magnetism.pdf
Download file (2.47 MB)
Download as zip (2.14 MB)
Collection

Citation
Donglin Li, Orlando J. Silveira, Takuma Matsuda, Hironobu Hayashi, Hiromitsu Maeda, Adam S. Foster, Shigeki Kawai. On‐Surface Synthesis of Triaza[5]triangulene through Cyclodehydrogenation and its Magnetism. Angewandte Chemie International Edition. 2024, 63 (45), .
SAMURAI

Description:

(abstract)

Triangulenes as neutral radicals are becoming promising candidates for future applications such as spintronics and quantum technologies. To extend the potential of the advanced materials, it is of importance to control their electronic and magnetic properties by multiple graphitic nitrogen doping. Here, we synthesize triaza[5]triangulene on Au(111) by cyclodehydrogenation, and its derivatives by cleaving C−N bonds. Bond-resolved scanning tunneling microscopy and scanning tunneling spectroscopy provided detailed structural information and evidence for open-shell singlet ground state. The antiferromagnetic arrangement of the spins in positively doped triaza[5]triangulene was further confirmed by density function theory calculations. The key aspect of triangulenes with multiple graphitic nitrogen is the extra pz electrons composing the π orbitals, favoring charge transfer to the substrate and changing their low-energy excitations. Our findings pave the way for the exploration of exotic low-dimensional quantum ph

Rights:

Keyword: on-surface synthesis, Triaza[5]triangulene, scanning tunneling microscopy, scanning tunneling spectroscopy

Date published: 2024-11-04

Publisher: Wiley

Journal:

  • Angewandte Chemie International Edition (ISSN: 14337851) vol. 63 issue. 45

Funding:

  • Japan Society for the Promotion of Science 22H00285
  • Japan Society for the Promotion of Science 22H02067
  • Japan Society for the Promotion of Science 20H05863
  • Japan Society for the Promotion of Science 24K01576
  • Research Council of Finland 346824

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1002/anie.202411893

Related item:

Other identifier(s):

Contact agent:

Updated at: 2024-10-29 16:30:37 +0900

Published on MDR: 2024-10-29 16:30:37 +0900

Filename Size
Filename Angew Chem Int Ed - 2024 - Li - On‐Surface Synthesis of Triaza 5 triangulene through Cyclodehydrogenation and its Magnetism.pdf (Thumbnail)
application/pdf 		Size 2.47 MB Detail