SKM 2023 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 16: Nanostructures at Surfaces (joint session O/CPP)
CPP 16.4: Vortrag
Montag, 27. März 2023, 15:45–16:00, GER 39
Electrospray Depositions of a Spin-Crossover Active Iron(II) [2×2] Grid Complex on Ag(111) with Different Landing Energies — •Dennis Meier1, Benedikt Schoof1, Joachim Reichert1, Nithin Surayadevara2, Andreas Walz1, Annette Huettig1, Hartmut Schlichting1, Mario Ruben2, Anthoula C. Papageorgiou1,3, and Johannes V. Barth1 — 1Technical University of Munich, Germany — 2Karlsruhe Institute of Technology, Germany — 3National and Kapodistrian University of Athens, Greece
Chiral spin-crossover (SCO) complexes are intriguing building blocks for innovative magneto-optical nanoarchitectures.1 Such an Fe(II) [2×2] grid complex was deposited in ultra-high vacuum with electrospray controlled ion beam deposition (ES-CIBD)2 on Ag(111) and investigated by scanning tunnelling microscopy. Low landing energy (< 3 eV/z) resulted in clusters and single molecules. Higher landing energies (> 3 eV/z) led to coordination bond cleavage and a rich variety of self-assembled surface networks forming from the grid fragments. Applying established on-surface synthesis methodology employing the possible constituents of these networks (ligands and Fe atoms) reproduced only a part of them. It is thus proposed that ES-CIBD provides an unexpected route to novel on-surface coordination network synthesis.
[1] N. Suryadevara et al. Chem. Eur. J. 2021, 27, 15172.
[2] A. Walz, K. Stoiber, A. Huettig, H. Schlichting, J. V. Barth, Anal. Chem. 2022, 94, 7767.