- Cheng, Zhihai, Zhang, Y.Y., Du, Shi-Xuan, Hofer, Werner A., Niang, N., Qiu, W.F., Gao, Hong-jun, Zhang, H.G., Gao, Li, Liu, Qi, and Liu, Y.Q.
- Experiments and first-principles calculations reveal that we introduce gold adatoms at the surface as the stable contact of the molecule to the surface. An off-center rotation axis is formed by a chemical bonding between a nitrogen atom of the molecule and a gold adatom at the surface, which gives them a well-defined contact while the molecules can have rotation-favorable configurations. Furthermore, these single-molecule rotors self-assemble into large scale ordered arrays on Au(111) surfaces. A fixed rotation axis off center is an important step towards the eventual fabrication of molecular motors or generators.
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