Molecular Gears: From Solution to Surfaces

This review highlights the major efforts devoted to the development of molecular gears over the past 40 years, from pioneering covalent bis-triptycyl systems undergoing intramolecular correlated rotation in solution, to the most recent examples of gearing systems anchored on a surface, which allow intermolecular transmission of mechanical power. Emphasis is laid on the different strategies devised progressively to control the architectures of molecular bevel and spur gears, as intramolecular systems in solution or intermolecular systems on surfaces, while aiming at increased efficiency, complexity and functionality.

Automated summary

This review highlights the major efforts in the development of molecular gears over the past 40 years, from covalent bis-triptycyl systems undergoing rotation in solution to gearing systems anchored on surfaces. Different strategies have been devised to control the architecture of molecular gears, aiming at increased efficiency, complexity, and functionality.