Engineering 2D spin networks by on-surface encapsulation of azafullerene radicals in nanotemplates

Kladnik, Gregor (avtor), Bavdek, Gregor (avtor), Tanuma, Yuri (avtor), Midden, Marion van (avtor), Zupanič, Erik (avtor), Anézo, Bastien (avtor), Arčon, Denis (avtor), Cvetko, Dean (avtor)

We present an efficient strategy for on-surface engineering of organic metal-free supramolecular complexes with long-term spin protection. By vacuum deposition of azafullerene (C$_{59}$N$^•$) monomers on a pre-deposited template layer of [10]cycloparaphenylene ([10]CPP) nanohoops on Au(111) surface we exploit the molecular shape matching between the C$_{59}$N$^•$ and [10]CPP for the azafullerene encapsulation with nanohoops in a guest-host complexation geometry. C$_{59}$N$^•$$\subset$[10]CPP supramolecular complexes self-assemble into an extended two-dimensional hexagonal lattice yielding a high density network of stable spin-1/2 radicals. We find compelling evidence for electronic coupling between the guest C$_{59}$N$^•$ and the host [10]CPP in supramolecular species. At the same time, [10]CPP effectively protects the radical state of encapsulated azafullerenes against dimerization and inhibits C$_{59}$N$^•$ coupling to the Au substrate. Azafullerene encapsulation by nanohoops represents a viable realization of molecular spin protection while simultaneously demonstrating exceptional self-assembling properties by which large-scale 2D architectures of molecular spins can be realized.

• Jezik: Angleški jezik
• Ključne besede: physical chemistry
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FMF - Fakulteta za matematiko in fiziko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2025
• Št. strani: 10 str.
• Številčenje: Vol. 16, art. no. ǂ193
• PID: 20.500.12556/RUL-166363
• UDK: 544
• ISSN pri članku: 2041-1723
• DOI: 10.1038/s41467-024-55521-2
• COBISS.SI-ID: 221416707
• Datum objave v RUL: 08.01.2025

KLADNIK, Gregor, BAVDEK, Gregor, TANUMA, Yuri, MIDDEN, Marion van, ZUPANIČ, Erik, ANÉZO, Bastien, ARČON, Denis in CVETKO, Dean, 2025, Engineering 2D spin networks by on-surface encapsulation of azafullerene radicals in nanotemplates. Nature communications [na spletu]. 2025. Vol. 16, no. 193. [Dostopano 11 april 2025]. DOI 10.1038/s41467-024-55521-2. Pridobljeno s: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=slv&id=166363

Gradivo je del revije

• Naslov: Nature communications
• Skrajšan naslov: Nat. Commun.
• Založnik: Nature Publishing Group
• ISSN: 2041-1723
• COBISS.SI-ID: 2315876

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: fizikalna kemija