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Iron-based trinuclear metal-organic nanostructures on a surface with local charge accumulation

Author

Listed:
  • Cornelius Krull

    (Monash University)

  • Marina Castelli

    (Monash University
    Monash University)

  • Prokop Hapala

    (Institute of Physics of the CAS)

  • Dhaneesh Kumar

    (Monash University
    Monash University
    ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University)

  • Anton Tadich

    (Australian Synchrotron)

  • Martina Capsoni

    (Department of Physics and Astronomy, University of British Columbia)

  • Mark T. Edmonds

    (Monash University
    Monash University
    ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University)

  • Jack Hellerstedt

    (Monash University
    Monash University
    Institute of Physics of the CAS)

  • Sarah A. Burke

    (Department of Physics and Astronomy, University of British Columbia
    Department of Chemistry, University of British Columbia
    Stewart Blusson Quantum Matter Institute, University of British Columbia)

  • Pavel Jelinek

    (Institute of Physics of the CAS
    RCPTM, Palacky University)

  • Agustin Schiffrin

    (Monash University
    Monash University
    ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University)

Abstract

Coordination chemistry relies on harnessing active metal sites within organic matrices. Polynuclear complexes—where organic ligands bind to several metal atoms—are relevant due to their electronic/magnetic properties and potential for functional reactivity pathways. However, their synthesis remains challenging; few geometries and configurations have been achieved. Here, we synthesise—via supramolecular chemistry on a noble metal surface—one-dimensional metal-organic nanostructures composed of terpyridine (tpy)-based molecules coordinated with well-defined polynuclear iron clusters. Combining low-temperature scanning probe microscopy and density functional theory, we demonstrate that the coordination motif consists of coplanar tpyʼs linked via a quasi-linear tri-iron node in a mixed (positive-)valence metal–metal bond configuration. This unusual linkage is stabilised by local accumulation of electrons between cations, ligand and surface. The latter, enabled by bottom-up on-surface synthesis, yields an electronic structure that hints at a chemically active polynuclear metal centre, paving the way for nanomaterials with novel catalytic/magnetic functionalities.

Suggested Citation

  • Cornelius Krull & Marina Castelli & Prokop Hapala & Dhaneesh Kumar & Anton Tadich & Martina Capsoni & Mark T. Edmonds & Jack Hellerstedt & Sarah A. Burke & Pavel Jelinek & Agustin Schiffrin, 2018. "Iron-based trinuclear metal-organic nanostructures on a surface with local charge accumulation," Nature Communications, Nature, vol. 9(1), pages 1-7, December.
  • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-05543-4
    DOI: 10.1038/s41467-018-05543-4
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    Cited by:

    1. M. DeJong & A. J. A. Price & E. Mårsell & G. Tom & G. D. Nguyen & E. R. Johnson & S. A. Burke, 2022. "Small molecule binding to surface-supported single-site transition-metal reaction centres," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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