[
  {
    "molid": "mol7607",
    "smiles": "Nc1ncncn1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "Nc1ncncn1",
        "std_free_energy": -7.827147006988525,
        "relative_population": 1.0
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "Nc1nc[nH+]cn1",
        "std_free_energy": -0.7030088305473328,
        "relative_population": 0.4087610365925586
      },
      {
        "id": "1_2",
        "charge": 1,
        "smiles": "Nc1ncnc[nH+]1",
        "std_free_energy": -0.6120651364326477,
        "relative_population": 0.3732270802241048
      },
      {
        "id": "1_3",
        "charge": 1,
        "smiles": "[NH3+]c1ncncn1",
        "std_free_energy": -0.07442767918109894,
        "relative_population": 0.21801188318333653
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 2.9,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "OCHEM"
      }
    ]
  }
]