title: Hybridisation at the organic-metal interface: a surface-scientific analogue of Hückel's rule?
abstract: We demonstrate that cyclooctatetraene (COT) can be stabilised in different conformations when adsorbed on different noble-metal surfaces due to varying molecule-substrate interactions. While at first glance the behaviour seems to be in accordance with Hückel's rule, a theoretical analysis reveals no significant charge transfer. The driving mechanism for the conformational change is hybridisation at the organic-metal interface and does not necessitate any charge transfer.
authors.affiliation: Physikalisches Institut and Center for Nanotechnology (CeNTech), Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany.
authors.forename: Hasmik
authors.initials: H
authors.lastname: Harutyunyan
authors.forename: Martin
authors.initials: M
authors.lastname: Callsen
authors.forename: Tobias
authors.initials: T
authors.lastname: Allmers
authors.forename: Vasile
authors.initials: V
authors.lastname: Caciuc
authors.forename: Stefan
authors.initials: S
authors.lastname: Blügel
authors.forename: Nicolae
authors.initials: N
authors.lastname: Atodiresei
authors.forename: Daniel
authors.initials: D
authors.lastname: Wegner