[
  {
    "molid": "mol21735",
    "smiles": "COc1ccc(C(=O)O)cc1[N+](=O)[O-]",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "COc1ccc(C(=O)O)cc1[N+](=O)[O-]",
        "std_free_energy": -3.1575992107391357,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "COc1ccc(C(=O)[O-])cc1[N+](=O)[O-]",
        "std_free_energy": -9.736913681030273,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 3.72,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Organic Oxygen Acids and Nitrogen Bases"
      }
    ]
  }
]