Carbon–Carbon Linked Covalent Organic Frameworks

Carbon–carbon (C–C or C=C) linked organic frameworks are a highly important class of conjugated, porous, and crystalline organic material. Due to strong covalent bonding between the building molecules, they possess outstanding chemical stability and uninterrupted π conjugation. These properties make them suitable for potential applications in catalysis, molecular separation, energy conversion and storage, sensing, and optoelectronics. This chapter discusses the various reaction methodologies used for synthesizing C–C linked covalent organic frameworks with relevant examples, focusing on understanding the associated reaction pathways, dynamics, and challenges. The intriguing properties of and applications for these materials are also surveyed in this chapter, to try to establish a structure–properties relationship.