Driving a third generation molecular motor with electrons across a surface

0570240 - FZÚ 2024 RIV US eng J - Článek v odborném periodiku
Srivastava, G. - Štacko, P. - Mendieta Moreno, Jesús Ignacio - Edalatmanesh, Shayan - Kistemaker, J.C.M. - Heideman, G.H. - Zoppi, L. - Parschau, M. - Feringa, B. L. - Ernst, Karl-Heinz
Driving a third generation molecular motor with electrons across a surface.
ACS Nano. Roč. 17, č. 4 (2023), s. 3931-3938. ISSN 1936-0851. E-ISSN 1936-086X
Grant CEP: GA ČR(CZ) GF21-17194L
Institucionální podpora: RVO:68378271
Klíčová slova: chirality * molecular motors * STM * single molecule studies * molecular dynamics
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 17.1, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1021/acsnano.2c12340

Excitation of single molecules with electrons tunneling between a sharp metallic tip of a scanning tunneling microscope and a metal surface is one way to study and control dynamics of molecules on surfaces. Electron tunneling induced dynamics may lead to hopping, rotation, molecular switching, or chemical reactions. Molecular motors that convert rotation of subgroups into lateral movement on a surface can in principle also be driven by tunneling electrons. For such surface-bound motor molecules the efficiency of motor action with respect to electron dose is still not known. Here, the response of a molecular motor containing two rotor units in the form of overcrowded alkene groups to inelastic electron tunneling has been examined on a Cu(111) surface in ultrahigh vacuum at 5 K. Upon vibrational excitation, switching between different molecular conformations is observed, including conversion of enantiomeric states of chiral conformations.
Trvalý link: https://hdl.handle.net/11104/0351858