# generated using pymatgen data_Mg5Si9 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 5.48836100 _cell_length_b 7.16104873 _cell_length_c 13.76919105 _cell_angle_alpha 77.87493083 _cell_angle_beta 85.39905784 _cell_angle_gamma 67.80183448 _symmetry_Int_Tables_number 1 _chemical_formula_structural Mg5Si9 _chemical_formula_sum 'Mg10 Si18' _cell_volume 489.87502342 _cell_formula_units_Z 2 loop_ _symmetry_equiv_pos_site_id _symmetry_equiv_pos_as_xyz 1 'x, y, z' loop_ _atom_site_type_symbol _atom_site_label _atom_site_symmetry_multiplicity _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Mg Mg0 1 0.86219900 0.71985300 0.67901500 1.0 Mg Mg1 1 0.89412700 0.28069700 0.41807500 1.0 Mg Mg2 1 0.47649700 0.56530600 0.55116400 1.0 Mg Mg3 1 0.38015600 0.31157700 0.41783200 1.0 Mg Mg4 1 0.24694100 0.97888300 0.61531300 1.0 Mg Mg5 1 0.86180900 0.83925500 0.44675500 1.0 Mg Mg6 1 0.31182300 0.66170400 0.13359200 1.0 Mg Mg7 1 0.95646400 0.42451800 0.87008700 1.0 Mg Mg8 1 0.62187500 0.94175300 0.15101100 1.0 Mg Mg9 1 0.54634300 0.17246500 0.92258400 1.0 Si Si10 1 0.77475600 0.28264300 0.05811400 1.0 Si Si11 1 0.43453600 0.58289600 0.94554000 1.0 Si Si12 1 0.09854500 0.95352600 0.25506500 1.0 Si Si13 1 0.84173500 0.25953900 0.71940100 1.0 Si Si14 1 0.53355400 0.64423900 0.32206600 1.0 Si Si15 1 0.29562900 0.27459200 0.71951300 1.0 Si Si16 1 0.21354900 0.28580800 0.22974700 1.0 Si Si17 1 0.51367400 0.88815400 0.82948600 1.0 Si Si18 1 0.98483600 0.62388600 0.29185600 1.0 Si Si19 1 0.02864100 0.44238700 0.56340400 1.0 Si Si20 1 0.97354600 0.88633700 0.83173100 1.0 Si Si21 1 0.10754600 0.98383400 0.97446900 1.0 Si Si22 1 0.67034400 0.26045400 0.23715700 1.0 Si Si23 1 0.41089100 0.57480900 0.76470400 1.0 Si Si24 1 0.15811000 0.38394300 0.04953400 1.0 Si Si25 1 0.79244600 0.72610200 0.99752300 1.0 Si Si26 1 0.68343200 0.11795600 0.59310400 1.0 Si Si27 1 0.32607500 0.93286400 0.41196400 1.0