On-surface synthesis of one-dimensional coordination polymers with tailored magnetic anisotropy

0549103 - FZÚ 2022 RIV US eng J - Článek v odborném periodiku
Mallada Faes, Benjamin Jose - Błoński, P. - Langer, R. - Jelínek, Pavel - Otyepka, M. - De La Torre Cerdeño, Bruno
On-surface synthesis of one-dimensional coordination polymers with tailored magnetic anisotropy.
ACS Applied Materials and Interfaces. Roč. 13, č. 27 (2021), s. 32393-32401. ISSN 1944-8244. E-ISSN 1944-8252
Grant CEP: GA ČR(CZ) GX20-13692X
Grant ostatní: AV ČR(CZ) AP1601
Program: Akademická prémie - Praemium Academiae
Institucionální podpora: RVO:68378271
Klíčová slova: nc-AFM * on surface chemistry * polymers
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 10.383, rok: 2021
Způsob publikování: Omezený přístup
https://doi.org/10.1021/acsami.1c04693

We present low-temperature (4.2 K) scanning tunneling microscopy and spectroscopy (LT-STM/STS) in combination with high-resolution atomic force microscopy (AFM) and a density functional theory (DFT) study of a two-step synthetic protocol to grow a robust Fe-porphyrin-based 1D polymer on-surface and to tune its magnetic properties. A thermally assisted Ullmann-like coupling reaction of Fe(III)diphenyl-bromine-porphyrin (2BrFeDPP-Cl) on Au(111) in ultra-high vacuum results in long (up to 50 nm) 1D metal–organic wires with regularly distributed magnetic and (electronically) independent porphyrins units, as confirmed by STM images. Thermally controlled C–H bond activation leads to conformational changes in the porphyrin units, which results in molecular planarization steered by 2D surface confinement, as confirmed by high-resolution AFM images.
Trvalý link: http://hdl.handle.net/11104/0325127