Surface specificity and mechanistic pathway of de-fluorination of C₆₀F₄₈ on coinage metals.

ABSTRACT: We provide experimental and theoretical understanding on fundamental processes taking place at room temperature when a fluorinated fullerene dopant gets close to a metal surface. By employing scanning tunneling microscopy and photoelectron spectroscopies, we demonstrate that the on-surface integrity of C₆₀F₄₈ depends on the interaction with the particular metal it approaches. Whereas on Au(111) the molecule preserves its chemical structure, on more reactive surfaces such as Cu(111) and Ni(111), molecules interacting with the bare metal surface lose the halogen atoms and transform to C₆₀. Though fluorine-metal bonding can be detected depending on the molecular surface density, no ordered fluorine structures are observed. We show the implications of the metal

SUBMITTER: Palacios-Rivera R 

PROVIDER: S-EPMC9419620 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature