“… the great opus on the mechanical bond. A most impressive undertaking!” Jean-Marie LehnCongratulations to co-author J. Fraser Stoddart, a 2016 Nobel Laureate in Chemistry.
In molecules, the mechanical bond is not shared between atoms—it is a bond that arises when molecular entities become entangled in space. Just as supermolecules are held together by supramolecular interactions, mechanomolecules, such as catenanes and rotaxanes, are maintained by mechanical bonds. This emergent bond endows mechanomolecules with a whole suite of novel properties relating to both form and function. They hold unlimited promise for countless applications, ranging from their presence in molecular devices and electronics to their involvement in remarkably advanced functional materials. The Nature of the Mechanical Bond is a comprehensive review of much of the contemporary literature on the mechanical bond, accessible to newcomers and veterans alike. Topics covered include:
- Supramolecular, covalent, and statistical approaches to the formation of entanglements that underpin mechanical bonds in molecules and macromolecules
- Kinetically and thermodynamically controlled strategies for synthesizing mechanomolecules
- Chemical topology, molecular architectures, polymers, crystals, and materials with mechanical bonds
- The stereochemistry of the mechanical bond (mechanostereochemistry), including the novel types of dynamic and static isomerism and chirality that emerge in mechanomolecules
- Artificial molecular switches and machines based on the large-amplitude translational and rotational motions expressed by suitably designed catenanes and rotaxanes.
Keywords: mechanical bond; mechanomolecules; catenanes; rotaxanes; chemical topology; molecular architectures; mechanostereochemistry; Molecular machine; Nobel prize; Nobel winning; Nobel award; Feringa; Fraser Stoddart; Jean-Pierre Sauvage; nanomachine, Electronic Materials, Nanochemistry, Electronic Materials, Nanochemistry