[
  {
    "molid": "mol9606",
    "smiles": "O=C1C(O)=C(Br)C(=O)C(Br)=C1Br",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C1C(O)=C(Br)C(=O)C(Br)=C1Br",
        "std_free_energy": -0.43515390157699585,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=C1C([O-])=C(Br)C(=O)C(Br)=C1Br",
        "std_free_energy": -7.432271957397461,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 1.1,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      }
    ]
  }
]