[
  {
    "molid": "mol2354",
    "smiles": "Oc1ccc2ccccc2c1/N=N/c1nccs1",
    "microspecies": [
      {
        "id": "0_2",
        "charge": 0,
        "smiles": "Oc1ccc2ccccc2c1/N=N/c1nccs1",
        "std_free_energy": -5.826174736022949,
        "relative_population": 0.9999864966431422
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "[O-]c1ccc2ccccc2c1/N=N/c1nccs1",
        "std_free_energy": -3.2306787967681885,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 8.94,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Hunt"
      }
    ]
  }
]