Applications of Pillar[ n ]arene‐Based Supramolecular Assemblies

Abstract Macrocycles are an important player in supramolecular chemistry. In 2008, a new class of macrocycles, “pillar[ n ]arenes”, were first discovered. Research efforts in the area of pillar[ n ]arenes have elucidated key properties, such as their shape, reaction mechanism, host–guest properties, and their versatile functionality, which has contributed to the development of pillar[ n ]arene chemistry and their applications to various fields. This Minireview describes how pillar[ n ]arene‐based supramolecular assemblies can be applied to supramolecular gel formation, reactions, light‐harvesting systems, drug‐delivery systems, biochemical applications, separation and storage materials, and surface chemistry.