We report on self-assembly of calixarenes deposited on Au (110) - (1×2). The molecules consist of a macrocycle with four phenol rings linked by methylene groups in the ortho-position. The scanning tunneling microscopy images together with the low-energy electron diffraction patterns allow us to identify the molecular conformer and the unit cell. The intermolecular interactions are rather weak and are governed by π stacking and van der Waals-type interactions as deduced from molecular mechanics calculations. The two-dimensional molecular self-ordering is due to a strong interaction with the gold substrate resulting in the replacement of the initial (1×2) missing row reconstruction by a (1×3) structure upon molecular adsorption. © 2005 The American Physical Society.
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|Publication status||Published - 15 Aug 2005|