Molecular
Rotation
Sub-monolayer coverage of
hexa-tert-butyl decacyclene on Cu(100) forms 1.5 nm single-molecule
rotors when free to spin as seen by UHV STM (top images).
J.
K. Gimzewski, C. Joachim, R. R. Schlittler, V. Langlais, H. Tang, I. Johannsen,
Science 281, 531(1998).