[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is dicarboxylate anion of (R)-2-benzylsuccinic acid. It is a dicarboxylic acid dianion and a 2-benzylsuccinate(2-). It is a conjugate base of a 2-benzylsuccinic acid. It is an enantiomer of a (S)-2-benzylsuccinate."}, {"from": "gpt", "value": "[C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][C@H1][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1]"}]