[
  {
    "molid": "mol33138",
    "smiles": "O=[As](O)(O)c1ccc(Cl)cc1Cl",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=[As](O)(O)c1ccc(Cl)cc1Cl",
        "std_free_energy": -1.3104594945907593,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=[As]([O-])(O)c1ccc(Cl)cc1Cl",
        "std_free_energy": -10.382685661315918,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 3.44,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      },
      {
        "pka_value": 3.14000010490417,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]