[
  {
    "molid": "mol31527",
    "smiles": "ON/C=C\\c1cnsc1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "ON/C=C\\c1cnsc1",
        "std_free_energy": -6.883540153503418,
        "relative_population": 0.9999985846361155
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "[O-]N/C=C\\c1cnsc1",
        "std_free_energy": 2.5562214851379395,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 10.9,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "AttenGpKa training set"
      }
    ]
  }
]