Used as a key building block in the synthesis of metal-organic frameworks (MOFs), particularly for constructing porous materials with high surface areas. Its multiple carboxylic acid groups enable strong coordination with metal ions, facilitating the formation of stable, three-dimensional network structures. These MOFs find applications in gas storage, selective gas separation, and catalysis due to their tunable pore sizes and functionalizable surfaces. The rigid terphenyl backbone enhances structural stability and influences the framework’s porosity and thermal resistance.