Non-covalent control of spin-state in metal-organic complex by positioning on N-doped graphene

0493418 - FZÚ 2019 RIV GB eng J - Článek v odborném periodiku
De La Torre Cerdeño, Bruno - Švec, Martin - Hapala, Prokop - López, Roso Redondo Jesús R. - Krejčí, Ondřej - Lo, Rabindranath - Manna, Debashree - Sarmah, Amrit - Nachtigallová, Dana - Tuček, J. - Blonski, P. - Otyepka, M. - Zbořil, R. - Hobza, Pavel - Jelínek, Pavel
Non-covalent control of spin-state in metal-organic complex by positioning on N-doped graphene.
Nature Communications. Roč. 9, Jul (2018), s. 1-9, č. článku 2831. E-ISSN 2041-1723
Grant CEP: GA MŠMT LM2015087; GA ČR GJ17-24210Y; GA ČR(CZ) GA16-16959S
Grant ostatní: AV ČR(CZ) AP1601
Program: Akademická prémie - Praemium Academiae
Institucionální podpora: RVO:68378271 ; RVO:61388963
Klíčová slova: AFM * molecular magnetism * DFT * grafene * spin cross over
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.); Physical chemistry (UOCHB-X)
Impakt faktor: 11.878, rok: 2018

Here we demonstrate control over the spin state of a single iron(II) phthalocyanine molecule by its positioning on N-doped graphene. The spin transition was driven by weak intermixing between orbitals with z-component of N-dopant (pz of N-dopant) and molecule (dxz, dyz, dz2) with subsequent reordering of the Fe d-orbitals. The transition was accompanied by an electron density redistribution within the molecule, sensed by atomic force microscopy with CO-functionalized tip. This demonstrates the unique capability of the high-resolution imaging technique to discriminate between different spin states of single molecules. Moreover, we present a method for triggering spin state transitions and tuning the electronic properties of molecules through weak non-covalent interaction with suitably functionalized graphene.
Trvalý link: http://hdl.handle.net/11104/0286788