[
  {
    "molid": "SAMPL8-16",
    "smiles": "CC(C)(C)OC(=O)NCc1nc2ccccc2[nH]1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CC(C)(C)OC(=O)NCc1nc2ccccc2[nH]1",
        "std_free_energy": -6.863340854644775,
        "relative_population": 1.0
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "CC(C)(C)OC(=O)NCc1[nH]c2ccccc2[nH+]1",
        "std_free_energy": -4.672350883483887,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 5.1,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "SAMPL8"
      }
    ]
  }
]