[
  {
    "molid": "mol20711",
    "smiles": "O=c1cc(C(F)(F)F)c2cc(F)c(O)c(F)c2o1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=c1cc(C(F)(F)F)c2cc(F)c(O)c(F)c2o1",
        "std_free_energy": -1.3786565065383911,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=c1cc(C(F)(F)F)c2cc(F)c([O-])c(F)c2o1",
        "std_free_energy": -6.009457111358643,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 4.0,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      }
    ]
  }
]