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            "chemical_system": "Al-Ba-N-Na",
            "density": 4.136807998433564,
            "density_atomic": 0.047305357276807986,
            "volume": 295.9495669397188,
            "volume_molar": 12.730356785514491,
            "formula_full": "Ba4 Na1 Al3 N6",
            "formula_reduced": "Ba4Na(AlN2)3",
            "formula_anonymous": "AB3C4D6",
            "formation_energy": -0.4927783723509061,
            "spacegroup": 229
        },
        {
            "id": "oqmd-1753646",
            "created_at": "2022-09-04T16:03:06.560540Z",
            "updated_at": "2022-09-04T16:03:06.560556Z",
            "structure_string": "Na1 Sr4 Al3 N6\n1.0\n-4.028913 4.028913 4.028913\n4.028913 -4.028913 4.028913\n4.028913 4.028913 -4.028913\nAl N Na Sr\n3 6 1 4\ndirect\n0.500000 0.500000 0.000000 Al\n0.500000 0.000000 0.500000 Al\n0.000000 0.500000 0.500000 Al\n0.287141 0.287141 0.000000 N\n0.712859 0.712859 0.000000 N\n0.287141 0.000000 0.287141 N\n0.000000 0.287141 0.287141 N\n0.712859 0.000000 0.712859 N\n0.000000 0.712859 0.712859 N\n0.000000 0.000000 0.000000 Na\n0.500000 0.000000 0.000000 Sr\n0.000000 0.500000 0.000000 Sr\n0.000000 0.000000 0.500000 Sr\n0.500000 0.500000 0.500000 Sr\n",
            "nsites": 14,
            "nelements": 4,
            "elements": [
                "Al",
                "N",
                "Na",
                "Sr"
            ],
            "chemical_system": "Al-N-Na-Sr",
            "density": 3.4180193535861374,
            "density_atomic": 0.05351855466224151,
            "volume": 261.5915188359394,
            "volume_molar": 11.25243534323013,
            "formula_full": "Na1 Sr4 Al3 N6",
            "formula_reduced": "NaSr4(AlN2)3",
            "formula_anonymous": "AB3C4D6",
            "formation_energy": -0.5044052137794769,
            "spacegroup": 229
        }
    ]
}