[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a dicarboxylic acid dianion obtained by the deprotonation of the carboxy groups of terephthalic acid. It is a conjugate base of a terephthalate(1-)."}, {"from": "gpt", "value": "[C][=C][C][=Branch1][O][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1]"}]