Used as a key building block in the synthesis of metal-organic frameworks (MOFs), particularly for constructing porous materials with acetylene-functionalized frameworks. The alkyne group enables post-synthetic modification via click chemistry, allowing attachment of various functional groups for targeted applications such as gas storage, catalysis, and chemical sensing. Its rigid aromatic structure with two carboxylic acid groups supports the formation of stable, highly ordered crystalline networks. Also explored in optoelectronic materials due to the conjugated system that can influence electronic properties in coordination polymers.