[
  {
    "molid": "mol11963",
    "smiles": "Cc1cccc(N(O)C(=O)c2ccccc2)c1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "Cc1cccc(N(O)C(=O)c2ccccc2)c1",
        "std_free_energy": -6.224907398223877,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "Cc1cccc(N([O-])C(=O)c2ccccc2)c1",
        "std_free_energy": -2.804471969604492,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 8.67,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      }
    ]
  }
]