Used as a key building block in the synthesis of metal-organic frameworks (MOFs) and covalent organic frameworks (COFs), this compound contributes to the development of porous materials with high surface areas. Its rigid, planar structure and carboxylic acid functional groups allow for strong coordination with metal ions, enabling the construction of stable network structures. These frameworks are explored for applications in gas storage, particularly for carbon dioxide and hydrogen, due to their selective adsorption properties. Additionally, the fluorene core provides structural stability and can enhance electronic properties, making the material suitable for use in optoelectronic devices and sensors. The compound also finds use in the design of functional polymers and conjugated networks for catalysis and separation technologies.