[
  {
    "molid": "mol9753",
    "smiles": "CC(=O)N1C(=O)NC(=O)C1C",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CC(=O)N1C(=O)NC(=O)[C@H]1C",
        "std_free_energy": -6.489170074462891,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CC(=O)N1C(=O)[N-]C(=O)[C@H]1C",
        "std_free_energy": -4.582995414733887,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 7.2,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      }
    ]
  }
]