[
  {
    "molid": "mol9882",
    "smiles": "Nc1ccc(O)c(Cl)c1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "Nc1ccc(O)c(Cl)c1",
        "std_free_energy": -5.663136959075928,
        "relative_population": 0.9999194428115897
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "Nc1ccc([O-])c(Cl)c1",
        "std_free_energy": 0.3550088107585907,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 9.16,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      }
    ]
  }
]