Beyond the Covalent Bond‐ The World of Co‐Crystals to Tune the Physicochemical Properties of Materials

Abstract Supramolecular entities, known for their exceptional molecular recognition and complexation skills, have emerged as key drivers of developments in a variety of creative research domains. Cocrystal, an important branch of crystalline organic materials, have received a lot of attention due to their simple fabrication methods and wide range of potential applications, particularly in pharmaceutics, electronics, chemical sensing, and photothermal conversion, etc. This review provides an overview of functional cocrystal research, covering design principles, preparation procedures, assembly modes, and a wide range of applications. Finally, additional challenges and opportunities are given. It is hoped that this review will be a useful and relevant resource for researchers captivated by supramolecular crystalline materials and beyond, encouraging the production of more original and new work in related areas.