Hybridisation at the organic-metal interface: a surface-scientific analogue of Hückel's rule?

@article{Harutyunyan2013HybridisationAT,
  title={Hybridisation at the organic-metal interface: a surface-scientific analogue of H{\"u}ckel's rule?},
  author={Hasmik Harutyunyan and Martin Callsen and Tobias Allmers and Vasile Caciuc and Stefan Bl{\"u}gel and Nicolae Atodiresei and Daniel Wegner},
  journal={Chemical communications},
  year={2013},
  volume={49 53},
  pages={5993-5}
}
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.