Tribenzylphosphine is primarily used as a ligand in coordination chemistry and catalysis. It plays a significant role in the formation of metal complexes, particularly with transition metals, due to its ability to stabilize metal centers and influence reaction pathways. This compound is often employed in organic synthesis, including cross-coupling reactions, where it enhances the efficiency and selectivity of the catalytic process. Additionally, it finds applications in the development of advanced materials, such as polymers and nanoparticles, where its properties help control the structure and functionality of the final product. Its use in research and industrial processes highlights its importance in facilitating complex chemical transformations.