[
  {
    "molid": "mol3930",
    "smiles": "c1ccc(C(C2=NCCN2)c2ccccc2)cc1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "c1ccc(C(C2=NCCN2)c2ccccc2)cc1",
        "std_free_energy": -0.6372792720794678,
        "relative_population": 1.0
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "c1ccc(C(C2=[NH+]CCN2)c2ccccc2)cc1",
        "std_free_energy": -8.886316299438477,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 9.78,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "IUPAC digitized pKa"
      }
    ]
  }
]