A Pseudorotaxane on Gold: Formation of Self‐Assembled Monolayers, Reversible Dethreading and Rethreading of the Ring, and Ion‐Gating Behavior

Machinelike behavior—reversible dethreading and rethreading of a molecular bead—is demonstrated in a self-assembled monolayer (SAM) of a pseudorotaxane on gold. Furthermore, unprecedented ion-gating behavior associated with threading and dethreading is observed; the SAM blocks or allows the access of electroactive species to the electrode surface depending on the presence or absence of the threaded molecular bead (see picture). Supporting information for this article is available on the WWW under http: //www. wiley-vch. de/contents/jc₂002/2003/z50692ₛ. pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.