[
  {
    "molid": "mol32551",
    "smiles": "ON=C1CCCc2nonc21",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "ON=C1CCCc2nonc21",
        "std_free_energy": -6.222525596618652,
        "relative_population": 0.9999356615427539
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "[O-]N=C1CCCc2nonc21",
        "std_free_energy": -2.3450469970703125,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 8.7799997,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      }
    ]
  }
]