title: Controlled templating of porphyrins by a molecular command layer.
abstract: The copper porphyrin (5,10,15,20-tetraundecylporphyrinato)copper(II) can be templated in a well-defined arrangement using p-(hexadecyloxycarbonyl)phenylacetylene as a command layer on graphite. The bicomponent system was characterized at the submolecular level at a solid/liquid interface by scanning tunneling microscopy (STM). It is proposed that the layer of copper porphyrins is templated on top of the command layer in a hierarchical fashion, via a combination of intermolecular π-π stacking and van der Waals interactions. A very subtle effect, i.e., a superstructure in the alkyl chain region of the phenylacetylene monolayers, was identified as a decisive factor for the templating process.
authors.affiliation: Radboud University Nijmegen , Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.
authors.forename: Duncan
authors.initials: D
authors.lastname: den Boer
authors.forename: Thomas
authors.initials: T
authors.lastname: Habets
authors.forename: Michiel J J
authors.initials: MJ
authors.lastname: Coenen
authors.forename: Minko
authors.initials: M
authors.lastname: van der Maas
authors.forename: Theo P J
authors.initials: TP
authors.lastname: Peters
authors.forename: Maxwell J
authors.initials: MJ
authors.lastname: Crossley
authors.forename: Tony
authors.initials: T
authors.lastname: Khoury
authors.forename: Alan E
authors.initials: AE
authors.lastname: Rowan
authors.forename: Roeland J M
authors.initials: RJ
authors.lastname: Nolte
authors.forename: Sylvia
authors.initials: S
authors.lastname: Speller
authors.forename: Johannes A A W
authors.initials: JA
authors.lastname: Elemans