Multidentate ligands are also called multidentate ligands. If a ligand contains two or more atoms that can provide lone electron pairs, the ligand is called multidentate ligand. When coordinating with M, it forms a chelate complex with a low coordination ratio and a cyclic structure, which reduces or even eliminates the phenomenon of hierarchical complexation (coordination), and increases the stability of the complex. It is widely used as a titrant and a masking agent, etc.
