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arXiv · 2204.01416

Anchoring molecular rotors by on-surface synthesis

Kwan Ho Au Yeung·Tim Kühne·Frank Eisenhut·Francesca Moresco
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Abstract

Single molecular rotor is an important component for constructing bot-tom-up molecular mechanical machines and a window for shedding light on complex physical and chemical questions about motions of organic molecules on surfaces. Stability of each component in such a molecular construction site is a crucial prerequisite. To realize a stable stepwise rotation of a molecule by a low temperature scanning tunneling microscope (LT-STM), atomic scale axles is particularly important. An ideal atomic scale axle is expected to balance between anchoring and mobility of rotating a single molecule on a metal surface under external excitations. In this Chapter, several chemical anchoring strategies on how to pin a molecular rotor are tested and discussed. Tip-induced manipulation and motion analysis are used as tools to investigate the properties and functionality of the proposed strategies.

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Kwan Ho Au Yeung, Tim Kühne, Frank Eisenhut, Francesca Moresco. 2022-04-04. Anchoring molecular rotors by on-surface synthesis. https://arxiv.org/abs/2204.01416

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