[
  {
    "molid": "mol22552",
    "smiles": "C[C@H]1[C@H](C(=O)O)[C@@]1(C)C(=O)O",
    "microspecies": [
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "C[C@H]1[C@H](C(=O)O)[C@@]1(C)C(=O)[O-]",
        "std_free_energy": -8.081058502197266,
        "relative_population": 0.2745181005788207
      },
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "C[C@H]1[C@H](C(=O)[O-])[C@@]1(C)C(=O)O",
        "std_free_energy": -9.052877426147461,
        "relative_population": 0.7254818994211794
      },
      {
        "id": "-2_1",
        "charge": -2,
        "smiles": "C[C@H]1[C@H](C(=O)[O-])[C@@]1(C)C(=O)[O-]",
        "std_free_energy": -10.816944122314453,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 3.93,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "AttenGpKa training set"
      },
      {
        "pka_value": 5.51,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "AttenGpKa training set"
      }
    ]
  }
]