jp071531d_si_001.pdf (102.15 kB)
Surface-Confined Two-Step Synthesis of the Complex (Ammine)(meso-tetraphenylporphyrinato)-zinc(II) on Ag(111)
journal contribution
posted on 2007-04-26, 00:00 authored by Ken Flechtner, Andreas Kretschmann, Liam R. Bradshaw, Marie-Madeleine Walz, Hans-Peter Steinrück, J. Michael GottfriedWe report the first example of a surface-confined two-step synthesis of axially coordinated metalloporphyrin
complexes in an ultrahigh vacuum environment. Specifically, a monolayer of tetraphenylporphyrin on an
Ag(111) surface was metalated with coadsorbed Zn atoms, and thereafter, NH3 ligands were attached to the
metal centers. The surface reactions were monitored with X-ray photoelectron spectroscopy. The approach
outlined in this work can be employed to produce and study adsorbates of various axially coordinated porphyrin
complexes, including biologically relevant systems.