[
  {
    "molid": "mol11283",
    "smiles": "O=Nc1ccc2ccccc2c1O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=Nc1ccc2ccccc2c1O",
        "std_free_energy": -4.290858268737793,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=Nc1ccc2ccccc2c1[O-]",
        "std_free_energy": -5.215710639953613,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 7.24,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 7.38,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 7.3,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      }
    ]
  }
]