On-surface synthesis of super-heptazethrene

Mishra, Shantanu; Melidonie, Jason; Eimre, Kristjan; Obermann, Sebastian; Gröning, Oliver; Pignedoli, Carlo A.; Ruffieux, Pascal; Feng, Xinliang; Fasel, Roman (2020). On-surface synthesis of super-heptazethrene. Chemical communications, 56(54), pp. 7467-7470. Royal Society of Chemistry 10.1039/D0CC02513E

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Zethrenes are model diradicaloids with potential applications in spintronics and optoelectronics. Despite a rich chemistry in solution, on-surface synthesis of zethrenes has never been demonstrated. We report the on-surface synthesis of super-heptazethrene on Au(111). Scanning tunneling spectroscopy investigations reveal that super-heptazethrene exhibits an exceedingly low HOMO-LUMO gap of 230 meV and, in contrast to its open-shell singlet ground state in the solution phase and in the solid-state, likely adopts a closed-shell ground state on Au(111).

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Fasel, Roman

Subjects:

500 Science > 530 Physics
500 Science > 540 Chemistry

ISSN:

1359-7345

Publisher:

Royal Society of Chemistry

Language:

English

Submitter:

Roman Fasel

Date Deposited:

03 Sep 2020 15:53

Last Modified:

03 Sep 2020 16:00

Publisher DOI:

10.1039/D0CC02513E

BORIS DOI:

10.7892/boris.146334

URI:

https://boris.unibe.ch/id/eprint/146334

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