[
  {
    "molid": "mol31332",
    "smiles": "OO",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "OO",
        "std_free_energy": -6.082496643066406,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "[O-]O",
        "std_free_energy": 4.888701438903809,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 11.6000003814697,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      },
      {
        "pka_value": 11.57,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "AttenGpKa training set"
      }
    ]
  }
]