[
  {
    "molid": "mol10118",
    "smiles": "O=C(NO)c1ccccc1[N+](=O)[O-]",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C(NO)c1ccccc1[N+](=O)[O-]",
        "std_free_energy": -5.684301376342773,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=C(N[O-])c1ccccc1[N+](=O)[O-]",
        "std_free_energy": -2.037149667739868,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 8.19999980926514,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      },
      {
        "pka_value": 8.2,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "AttenGpKa training set"
      }
    ]
  }
]