# generated using pymatgen data_Mg5Si9 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 6.88806800 _cell_length_b 7.30496698 _cell_length_c 11.83473985 _cell_angle_alpha 88.09026880 _cell_angle_beta 97.25365554 _cell_angle_gamma 114.79481067 _symmetry_Int_Tables_number 1 _chemical_formula_structural Mg5Si9 _chemical_formula_sum 'Mg10 Si18' _cell_volume 536.14114092 _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 0.58939600 0.97929500 0.69689900 1.0 Mg Mg1 1 0.69472500 0.01351200 0.41204400 1.0 Mg Mg2 1 0.19234500 0.65384200 0.51840200 1.0 Mg Mg3 1 0.73426900 0.43785500 0.33856300 1.0 Mg Mg4 1 0.77385300 0.68798900 0.56844400 1.0 Mg Mg5 1 0.36219700 0.22795800 0.50352000 1.0 Mg Mg6 1 0.67107600 0.15962800 0.11896200 1.0 Mg Mg7 1 0.40518700 0.17858300 0.87483600 1.0 Mg Mg8 1 0.94693700 0.62481800 0.06901700 1.0 Mg Mg9 1 0.02556400 0.33437700 0.91098700 1.0 Si Si10 1 0.22431000 0.24612900 0.16989100 1.0 Si Si11 1 0.50639000 0.63702000 0.91342300 1.0 Si Si12 1 0.97367000 0.85823000 0.36538000 1.0 Si Si13 1 0.11112900 0.23633700 0.69478600 1.0 Si Si14 1 0.10774700 0.45374300 0.26498300 1.0 Si Si15 1 0.03416600 0.73687800 0.81790300 1.0 Si Si16 1 0.35582200 0.76883400 0.18944400 1.0 Si Si17 1 0.73581200 0.41447300 0.74964900 1.0 Si Si18 1 0.70974400 0.77198600 0.19574800 1.0 Si Si19 1 0.17733000 0.94537000 0.66067200 1.0 Si Si20 1 0.83368400 0.90468000 0.86966800 1.0 Si Si21 1 0.92902500 0.00183900 0.06207500 1.0 Si Si22 1 0.33033400 0.03304600 0.29616200 1.0 Si Si23 1 0.44671500 0.53515200 0.71629100 1.0 Si Si24 1 0.31973900 0.81419100 0.97439700 1.0 Si Si25 1 0.52404300 0.44433500 0.07798800 1.0 Si Si26 1 0.83779300 0.31444900 0.57853300 1.0 Si Si27 1 0.44661500 0.58535100 0.39104700 1.0