Artículos de revistas
Assembly of Ferrocene Molecules on Metal Surfaces Revisited
Fecha
2015-01Registro en:
Ormaza, Maider; Abufager, Paula Natalia; Bachellier, Nicolas; Robles, Roberto ; Verot, Martin; et al.; Assembly of Ferrocene Molecules on Metal Surfaces Revisited; American Chemical Society; Journal of Physical Chemistry Letters; 6; 3; 1-2015; 395-400
1948-7185
Autor
Ormaza, Maider
Abufager, Paula Natalia
Bachellier, Nicolas
Robles, Roberto
Verot, Martin
Le Bahers, Tangui
Bocquet, Marie Laure
Lorente, Nicolas
Limot, Laurent
Resumen
Metallocene (MCp2) wires have recently attracted considerable interest in relation to molecular spintronics due to predictions concerning their half-metallic nature. This exciting prospect is however hampered by the little and often-contradictory knowledge we have concerning the metallocene self-assembly and interaction with a metal. Here, we elucidate these aspects by focusing on the adsorption of ferrocene on Cu(111) and Cu(100). Combining low-temperature scanning tunneling microscopy and density functional theory calculations, we demonstrate that the two-dimensional molecular arrangement consists of vertical- and horizontal-lying molecules. The noncovalent T-shaped interactions between Cp rings of vertical and horizontal molecules are essential for the stability of the physisorbed molecular layer. These results provide a fresh insight into ferrocene adsorption on surfaces and may serve as an archetypal reference for future work with this important variety of organometallic molecules.