[
  {
    "molid": "mol30749",
    "smiles": "Oc1c(Cl)cc(-c2ccccc2)cc1Cl",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "Oc1c(Cl)cc(-c2ccccc2)cc1Cl",
        "std_free_energy": -3.8635940551757812,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "[O-]c1c(Cl)cc(-c2ccccc2)cc1Cl",
        "std_free_energy": -4.255411148071289,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 6.3,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "AttenGpKa training set"
      }
    ]
  }
]