[
  {
    "molid": "mol25466",
    "smiles": "O=[N+]([O-])c1n[nH]cc1-c1ccccc1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=[N+]([O-])c1n[nH]cc1-c1ccccc1",
        "std_free_energy": -6.65943717956543,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=[N+]([O-])c1n[n-]cc1-c1ccccc1",
        "std_free_energy": 1.550391435623169,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 9.11,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "AttenGpKa training set"
      }
    ]
  }
]