[
  {
    "molid": "mol11785",
    "smiles": "O=[As](O)(O)c1ccc(N=Nc2ccc(O)cc2)cc1",
    "microspecies": [
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "O=[As]([O-])(O)c1ccc(N=Nc2ccc(O)cc2)cc1",
        "std_free_energy": -9.731926918029785,
        "relative_population": 0.9986297100843194
      },
      {
        "id": "-2_1",
        "charge": -2,
        "smiles": "O=[As]([O-])([O-])c1ccc(N=Nc2ccc(O)cc2)cc1",
        "std_free_energy": -8.091851234436035,
        "relative_population": 0.9941109762897296
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 7.6,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "OCHEM"
      }
    ]
  }
]