title: NO-Induced Reorganization of Porphyrin Arrays.
abstract: We studied the interaction of a highly ordered array of Co-tetraphenylporphyrin (CoTPP) with NO on Ag(111) by in situ scanning tunneling microscopy and X-ray photoelectron spectroscopy. Upon NO exposure, the initially quadratically ordered CoTPP layer reorganizes, showing a wealth of highly ordered NO+CoTPP coadsorbate phases with increasing size of the unit cell, interpreted as due to attractive lateral dipole-dipole interactions between the two species. The findings not only suggest a novel approach to control the arrangement of adsorbed porphyrins in particular but also should generally be considered in the production of functional layers from large organic molecules under ambient conditions or after exposure to small electronegative molecules.
authors: Lehrstuhl für Physikalische Chemie II and Interdisciplinary Center for Molecular Materials (ICMM), Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany.
authors: Florian
authors: F
authors: Buchner
authors: Knud
authors: K
authors: Seufert
authors: Willi
authors: W
authors: Auwärter
authors: Daniel
authors: D
authors: Heim
authors: Johannes V
authors: JV
authors: Barth
authors: Ken
authors: K
authors: Flechtner
authors: J Michael
authors: JM
authors: Gottfried
authors: Hans-Peter
authors: HP
authors: Steinrück
authors: Hubertus
authors: H
authors: Marbach