[
  {
    "molid": "mol30306",
    "smiles": "O=C1Nc2ccc(C(=O)c3ccccc3Cl)cc2O1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C(c1ccc2[nH]c(=O)oc2c1)c1ccccc1Cl",
        "std_free_energy": -5.2729082107543945,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=C(c1ccc2[n-]c(=O)oc2c1)c1ccccc1Cl",
        "std_free_energy": -2.11574125289917,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 7.35,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "AttenGpKa training set"
      }
    ]
  }
]