[
  {
    "molid": "mol6730",
    "smiles": "c1ccc(-c2cc(-c3ccccc3)on2)cc1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "c1ccc(-c2cc(-c3ccccc3)on2)cc1",
        "std_free_energy": -6.436496257781982,
        "relative_population": 1.0
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "c1ccc(-c2cc(-c3ccccc3)o[nH+]2)cc1",
        "std_free_energy": 5.607481479644775,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": -3.24,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "IUPAC digitized pKa"
      }
    ]
  }
]