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      "structure": {
        "id": "bd5d616a-f35d-4bff-8c52-a0aa28db2c1a",
        "molfile": "\n  Marvin  01132109472D          \n\n  6  4  0  0  0  0            999 V2000\n    7.2659   -6.9768    0.0000 Si  0  0  0  0  0  0  0  0  0  0  0  0\n    7.2659   -7.8019    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    6.4408   -6.9768    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    8.0908   -6.9768    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    7.2659   -6.1519    0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0\n    9.0433   -7.4758    0.0000 Zr  0  0  0  0  0  0  0  0  0  0  0  0\n  1  2  1  0  0  0  0\n  1  3  1  0  0  0  0\n  1  4  1  0  0  0  0\n  1  5  1  0  0  0  0\nM  CHG  5   2  -1   3  -1   4  -1   5  -1   6   4\nM  END",
        "smiles": "[O-][Si]([O-])([O-])[O-].[Zr+4]",
        "formula": "O4Si.Zr",
        "atropisomerism": "No",
        "charge": 0,
        "count": 1,
        "stereochemistry": "ACHIRAL",
        "defined_stereo": 0,
        "ez_centers": 0,
        "molecular_weight": "183.3067",
        "optical_activity": "NONE",
        "references": [
          "cac3b6cf-52f0-4101-87f9-72cbea654792",
          "c33e56eb-f890-4b54-ab7a-443f93886950"
        ],
        "stereo_centers": 0
      },
      "unii": "4SY8H89134"
    }
  ]
}