[
  {
    "molid": "mol31491",
    "smiles": "C/C(=N\\O)[N+](=O)[O-]",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "C/C(=N\\O)[N+](=O)[O-]",
        "std_free_energy": -6.11583948135376,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "C/C(=N\\[O-])[N+](=O)[O-]",
        "std_free_energy": -4.3828325271606445,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 7.4,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "AttenGpKa training set"
      }
    ]
  }
]