{
    "mp_code": "mp_4295227889",
    "reduced_formula": "Y2Zn17",
    "formula": "Y2Zn17",
    "crystal_system": "Trigonal",
    "space_group": 166,
    "international": "R-3m",
    "number_of_ions": 19,
    "volume": 306.570000,
    "plasma_frequency_xx": 4.281340,
    "plasma_frequency_yy": 4.269300,
    "plasma_frequency_zz": 4.260860,
    "plasma_frequency_xyz": 4.270000,
    "scattering_rate": 0.1
}