Assembly of Ferrocene Molecules on Metal Surfaces Revisited

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-ass...

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Detalles Bibliográficos
Autores: Ormaza, Maider, Abufager, Paula Natalia, Bachellier, Nicolas, Robles, Roberto, Verot, Martin, Le Bahers, Tangui, Bocquet, Marie Laure, Lorente, Nicolas, Limot, Laurent
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/6163
Acceso en línea:http://hdl.handle.net/11336/6163
Access Level:acceso abierto
Palabra clave:Ferrocene
Assembly
Surface
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
Descripción
Sumario: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.