Hydrogen Bond Reformation in Tetracarboxylic Acid‐Based Organic Frameworks with Square Lattice Topology

The weak and reversible nature of hydrogen bonds endows porous materials with structural flexibility. In this article, we highlight structural transformations involving the cleavage and reformation of hydrogen bonds-termed H-bond reformation. To enable control over H-bond reformation through molecular design, we examine and discuss key structural features. Particular attention is given to tetracarboxylic acids bearing 4,4'-dicarboxy-o-terphenyl moieties as scaffolds for inducing H-bond reformation. These insights are expected to guide the rational design of dynamic porous materials with tunable properties and stimuli-responsive behavior.