title: Supramolecular assemblies of a bis(terpyridine) ligand and of its [2x2] grid-type Zn(II) and Co(II) complexes on highly ordered pyrolytic graphite.
abstract: The synthesis and characterisation of bis(terpyridine)-derived ligands which are capable of forming [2x2] grid-like complexes is presented. Additional pyridine substituents on these ligands do not interfere with the complexation process. Adsorbing one of the pure ligands on highly ordered pyrolytic graphite (HOPG) shows a highly ordered structure stabilised by additional weak intermolecular C-H...N hydrogen bonds partially through the extra-pyridines as could be shown by scanning tunneling microscopy (STM) investigations. Similar adsorption experiments with one of the corresponding [2x2] Co(II) grid-type complexes on graphite, led also to a well-organised structure with interdigitation of the extra-pyridine moieties.
authors.affiliation: Laboratoire de Chimie Supramoléculaire, ISIS Université Louis Pasteur 4, rue Blaise Pascal, 67000 Strasbourg, France.
authors.forename: Ulrich
authors.initials: U
authors.lastname: Ziener
authors.forename: Jean-Marie
authors.initials: JM
authors.lastname: Lehn
authors.forename: Ahmed
authors.initials: A
authors.lastname: Mourran
authors.forename: Martin
authors.initials: M
authors.lastname: Möller