[
  {
    "molid": "mol1664",
    "smiles": "Nc1cc(Br)ccc1Br",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "Nc1cc(Br)ccc1Br",
        "std_free_energy": -7.139966011047363,
        "relative_population": 1.0
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "[NH3+]c1cc(Br)ccc1Br",
        "std_free_energy": 3.3879261016845703,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 1.44,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "OCHEM"
      },
      {
        "pka_value": 1.44000005722046,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "QSARToolbox"
      }
    ]
  }
]