[
  {
    "molid": "mol6918",
    "smiles": "O=[N+]([O-])c1cn[nH]c1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=[N+]([O-])c1cn[nH]c1",
        "std_free_energy": -6.5680999755859375,
        "relative_population": 1.0
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "O=[N+]([O-])c1c[nH][nH+]c1",
        "std_free_energy": 10.616470336914062,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=[N+]([O-])c1cn[n-]c1",
        "std_free_energy": -1.0871191024780273,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 9.505,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "AttenGpKa training set"
      },
      {
        "pka_value": -1.83,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "AttenGpKa training set"
      }
    ]
  }
]