[
  {
    "molid": "mol1213",
    "smiles": "Nc1ccc2cccc([N+](=O)[O-])c2c1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "Nc1ccc2cccc([N+](=O)[O-])c2c1",
        "std_free_energy": -6.661259651184082,
        "relative_population": 1.0
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "[NH3+]c1ccc2cccc([N+](=O)[O-])c2c1",
        "std_free_energy": 1.8923346996307373,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 2.73,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 2.86,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "Datawarrior"
      },
      {
        "pka_value": 2.8599999,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "OCHEM"
      },
      {
        "pka_value": 2.85999989509583,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "QSARToolbox"
      },
      {
        "pka_value": 2.73000001907349,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "QSARToolbox"
      }
    ]
  }
]