[
  {
    "molid": "mol2297",
    "smiles": "CCOC(=O)N1CCC(c2cc(=O)n(-c3ccccc3)[nH]2)CC1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CCOC(=O)N1CCC(c2cc(=O)n(-c3ccccc3)[nH]2)CC1",
        "std_free_energy": -6.507654666900635,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CCOC(=O)N1CCC(c2cc(=O)n(-c3ccccc3)[n-]2)CC1",
        "std_free_energy": 5.4518232345581055,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 6.8,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Hunt"
      }
    ]
  }
]