Used as a multidentate ligand in coordination chemistry to form stable complexes with transition metals, particularly in catalysis and supramolecular chemistry. Its extended π-conjugated structure makes it suitable for applications in photophysical studies and metallo-supramolecular assemblies. Commonly employed in the development of luminescent sensors and molecular devices due to its ability to chelate metal ions effectively. Also investigated in dye-sensitized solar cells and as a building block for metal-organic frameworks (MOFs) with tailored electronic properties.