[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. 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."}, {"from": "gpt", "value": "[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]"}]