HIGHLIGHTS:

On surface transformation of azides

We studied chemical transformation of 9‐azidophenanthrene on the Ag(111) surface in UHV conditions by nc‐AFM. High‐resolution imaging supported by first‐principle calculations revealed the structure of the final products that originated from a common and elusive 9‐phenanthryl nitrenoid intermediate chemisorbed on the Ag(111) surface.

Angew. Chem. Int. Ed. 58  1 - 7 (2019).

Control of molecular spin states via non-covalent interaction

Here we demonstrate control over the spin state of a single iron(II) phthalocyanine molecule by via non-covalent interaction with substitutional nitrogen dopant in graphene. In addition we showed the unique capability of the high-resolution imaging technique to discriminate between different spin states of single molecules

Nat. Commun. 9   2831(1) - 2831(9)  (2018) .

Sub-molecular AFM imaging of weakly coupled water clusters

We presented a new method to achieve submolecular resolution of weakly bound water clusters on solid surfaces, including their chiral orientation or metastable configurations. This significantly advances the current possibilities of imaging weakly bound water nanostructures using Atomic Force Microscopy. For example it opens a new way to determine mobility of ionic sodium hydrates on surface.
Nature 557   701 - 705 (2018). 
Nat. Commun. 9   122(1) - 122(7) (2018).

Piezoelectric effect on single molecule

For first time, we demonstrated a strong piezoelectric response of a single helicene based molecule deposited on metallic surface. This represents a breakthrough in understanding the electromechanical behaviour of individual molecules and provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale.

J. Am. Chem. Soc. 140   940 - 946 (2018).

Conservation of chirality during on-surface reactions

We show for the first time the possibility to reach indirectly through a chemical on-surface reaction the enantiofacial adsorption of flat prochiral molecules on an achiral metal surface, affording highly enantioenriched adsorbates. Naturally, such a spontaneous global mirror-symmetry breaking upon direct adsorption of prochiral molecules on surfaces was not possible so far.

Nat. Chem. 9   213 - 218 (2017).


RESEARCH LINES:

Nanosurf group combines experimental and theoretical tools to explore novel material properties of nanostructures artificially built on surfaces. We use ultra-high vacuum low-temperature scanning probe microscopy to investigate their physical and chemical properties at the atomic scale. The experimental activities are supported by theoretical analysis including development of homebuilt tools (SPM probe particle code, local orbital DFT Fireball code). Our main goal is preparation of low-dimensional molecular nanostructures searching for new physical and chemical phenomena at the atomic scale.

 
  • 2D and 1D molecular systems and their physical and chemical properties
  • Control of single electron charge states in molecules
  • UHV On-surface chemistry
  • High-resolution SPM imaging with functionalized probes
  • Mechanical and transport properties of molecules on surfaces