[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a dicarboxylic acid dianion resulting from the removal of a proton from both of the carboxy groups of heme d cis-diol. It has a role as a cofactor. It is a conjugate base of a heme d cis-diol."}, {"from": "gpt", "value": "[C][C][=C][Branch2][=Branch1][N][C][=C][C][=N][C][=Branch2][Ring2][#C][=C][C][=C][Branch2][Ring2][#Branch1][C][=Branch2][Ring2][C][=C][Branch1][Ring2][N-1][Ring1][Branch1][C][=C][C][=Branch2][Ring1][Ring2][=C][Branch1][S][C][=Branch1][Ring2][=N][Ring1][Branch1][C][=C][Ring2][Ring1][Branch1][N-1][Ring2][Ring1][Ring2][C][C][=C][C][C][=C][C@][Branch1][#C][C@][Ring2][Ring1][#Branch2][Branch1][Branch2][C][C][C][=Branch1][C][=O][O-1][O][Branch1][C][C][O][C][C][C][=Branch1][C][=O][O-1].[Fe]"}]