[
  {
    "molid": "mol9894",
    "smiles": "OP(O)c1cccc(Br)c1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "OP(O)c1cccc(Br)c1",
        "std_free_energy": -0.6466568112373352,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 1.39,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      }
    ]
  }
]