Two-Dimensional Ketone-Driven Metal-Organic Coordination on Cu(111).

ABSTRACT: Two-dimensional metal-organic nanostructures based on the binding of ketone groups and metal atoms were fabricated by depositing pyrene-4,5,9,10-tetraone (PTO) molecules on a Cu(111) surface. The strongly electronegative ketone moieties bind to either copper adatoms from the substrate or codeposited iron atoms. In the former case, scanning tunnelling microscopy images reveal the development of an extended metal-organic supramolecular structure. Each copper adatom coordinates to two ketone ligands of two neighbouring PTO molecules, forming chains that are linked together into large islands through secondary van der Waals interactions. Deposition of iron atoms leads to a transformation of this assembly resulting from the substitution of the metal centres. Density functional theory calculatio

SUBMITTER: Della Pia A 

PROVIDER: S-EPMC5074249 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature