[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=N][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=N][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=N][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a tridentate heterocyclic ligand that binds metals at three meridional sites giving two adjacent 5-membered MN2C2 chelate rings. It has a role as a chelator."}]