[
  {
    "molid": "mol8650",
    "smiles": "Cc1c([N+](=O)[O-])cc(C(N)=O)cc1[N+](=O)[O-]",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "Cc1c([N+](=O)[O-])cc(C(N)=O)cc1[N+](=O)[O-]",
        "std_free_energy": -6.582985877990723,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": -2.69,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "AttenGpKa training set"
      }
    ]
  }
]