# generated using pymatgen data_Mg5Si9 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 5.74939600 _cell_length_b 7.23844599 _cell_length_c 12.67276772 _cell_angle_alpha 84.93965895 _cell_angle_beta 78.30335334 _cell_angle_gamma 71.99218323 _symmetry_Int_Tables_number 1 _chemical_formula_structural Mg5Si9 _chemical_formula_sum 'Mg10 Si18' _cell_volume 490.96396027 _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 0.08253000 0.93992500 0.70848500 1.0 Mg Mg1 1 0.14398800 0.99512900 0.45393100 1.0 Mg Mg2 1 0.98219100 0.63802400 0.55659800 1.0 Mg Mg3 1 0.91936600 0.43722700 0.37695300 1.0 Mg Mg4 1 0.47083700 0.62630700 0.57095000 1.0 Mg Mg5 1 0.48531500 0.25028500 0.43449200 1.0 Mg Mg6 1 0.13453200 0.09726400 0.06818500 1.0 Mg Mg7 1 0.47631300 0.13495100 0.83464100 1.0 Mg Mg8 1 0.62228300 0.60744600 0.01363000 1.0 Mg Mg9 1 0.94015200 0.25863700 0.87156000 1.0 Si Si10 1 0.66130400 0.36295600 0.21373200 1.0 Si Si11 1 0.20743800 0.47356400 0.97384000 1.0 Si Si12 1 0.67786400 0.84174000 0.40431100 1.0 Si Si13 1 0.21468500 0.28016600 0.65154800 1.0 Si Si14 1 0.32064900 0.19599600 0.23669500 1.0 Si Si15 1 0.69535800 0.75637900 0.77926700 1.0 Si Si16 1 0.26062200 0.74424000 0.20329000 1.0 Si Si17 1 0.60275300 0.46241600 0.75667300 1.0 Si Si18 1 0.64136700 0.86817100 0.17206800 1.0 Si Si19 1 0.58275200 0.98129900 0.60878000 1.0 Si Si20 1 0.22865400 0.83419000 0.90901100 1.0 Si Si21 1 0.57081200 0.24391600 0.05004800 1.0 Si Si22 1 0.92585300 0.04249000 0.27898600 1.0 Si Si23 1 0.15430200 0.55443700 0.77368300 1.0 Si Si24 1 0.78450000 0.92725200 0.97375300 1.0 Si Si25 1 0.00305200 0.54665600 0.16191600 1.0 Si Si26 1 0.82581200 0.27212800 0.59350400 1.0 Si Si27 1 0.38458600 0.62677500 0.36922100 1.0