[
  {
    "molid": "mol9865",
    "smiles": "O=[N+]([O-])c1cccc(Cl)c1O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=[N+]([O-])c1cccc(Cl)c1O",
        "std_free_energy": -1.9777008295059204,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=[N+]([O-])c1cccc(Cl)c1[O-]",
        "std_free_energy": -7.138014793395996,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 5.483,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 5.48,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Organic Oxygen Acids and Nitrogen Bases"
      },
      {
        "pka_value": 5.48000001907349,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      },
      {
        "pka_value": 5.48299980163574,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]