Used as a key ligand in coordination chemistry, particularly in the formation of metal-organic complexes for catalysis and photochemical applications. Its structure allows strong binding to transition metals, making it valuable in designing sensors, molecular devices, and luminescent materials. Commonly employed in the development of ruthenium or iron-based complexes for solar energy conversion and electrochemical systems. Also applied in supramolecular chemistry to build self-assembled structures due to its rigid, tridentate coordination geometry.