On-surface synthesis of a large-scale 2D MOF with competing π–d ferromagnetic/antiferromagnetic order

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00638840" target="_blank" >RIV/68378271:_____/25:00638840 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15640/25:73631039

Result on the web

<a href="https://hdl.handle.net/11104/0369405" target="_blank" >https://hdl.handle.net/11104/0369405</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/jacs.4c17993" target="_blank" >10.1021/jacs.4c17993</a>

Result language

angličtina

Original language name

On-surface synthesis of a large-scale 2D MOF with competing π–d ferromagnetic/antiferromagnetic order

Original language description

Metal–organic frameworks (MOFs) represent an interesting class of versatile materials with important properties, including magnetism. However, the synthesis of atomically precise large-scale 2D MOFs with nontrivial strong magnetic coupling represents a current research challenge. In this regard, we report on the synthesis of a high-quality large-scale 2D MOF, with strong π–d magnetic exchange coupling. To this aim, we present a new two-step synthetic approach that consists of the initial formation of an extended supramolecular organic framework on a Au(111) surface, establishing the large-scale order of organic ligands and their subsequent metalation by single cobalt atoms assisted by annealing. Moreover, we show that the usage of radical asymmetric organic ligands enables us to form a magnetic 2D MOF with strong π–d electron interactions. According to the multireference calculations, the 2D MOF shows complex spin interactions beyond the traditional superexchange mechanism, with the interplay between antiferromagnetic and ferromagnetic couplings. We anticipate that this synthetic strategy can be adapted to different approaches, such as liquid interfaces or insulating substrates, to synthesize high-quality 2D MOFs. Accompanied by the high control with atomic precision over the magnetic properties of the ligands and metals, this approach enables the formation of large-scale 2D MOFs with complex spin interactions, which will open new avenues in the field of 2D magnetic materials.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of the American Chemical Society

ISSN

0002-7863

e-ISSN

1520-5126

Volume of the periodical

147

Issue of the periodical within the volume

23

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

19575-19582

UT code for WoS article

001499961500001

EID of the result in the Scopus database

2-s2.0-105006916417