Bis(2-diphenylphosphinoethyl)phenylphosphine is widely used as a ligand in coordination chemistry, particularly in the formation of transition metal complexes. Its application is prominent in catalytic processes, such as hydrogenation, hydroformylation, and carbonylation reactions, where it enhances the efficiency and selectivity of the catalysts. This compound is also utilized in the synthesis of fine chemicals and pharmaceuticals due to its ability to stabilize metal centers and facilitate specific reaction pathways. Additionally, it plays a role in the development of advanced materials, including polymers and nanomaterials, by acting as a stabilizing agent in metal-catalyzed polymerization processes. Its versatility in forming stable complexes with various metals makes it valuable in both industrial and academic research settings.