# generated using pymatgen data_Mg5Si9 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 6.87113400 _cell_length_b 7.17450530 _cell_length_c 12.81128801 _cell_angle_alpha 83.92668539 _cell_angle_beta 76.99962704 _cell_angle_gamma 62.89040384 _symmetry_Int_Tables_number 1 _chemical_formula_structural Mg5Si9 _chemical_formula_sum 'Mg10 Si18' _cell_volume 547.75952429 _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 0.45877700 0.05634300 0.27778700 1.0 Mg Mg1 1 0.83171600 0.91473500 0.55491100 1.0 Mg Mg2 1 0.10384500 0.40723100 0.46247500 1.0 Mg Mg3 1 0.65445800 0.54421800 0.63514300 1.0 Mg Mg4 1 0.60830600 0.36438500 0.43707000 1.0 Mg Mg5 1 0.31505500 0.94253800 0.52850100 1.0 Mg Mg6 1 0.80373900 0.77266600 0.82992500 1.0 Mg Mg7 1 0.35048900 0.80963200 0.10123600 1.0 Mg Mg8 1 0.21229400 0.18096900 0.89093700 1.0 Mg Mg9 1 0.91525900 0.58578000 0.05155500 1.0 Si Si10 1 0.33688300 0.71572100 0.85728500 1.0 Si Si11 1 0.51037400 0.34927400 0.10320000 1.0 Si Si12 1 0.07911600 0.25614700 0.69217600 1.0 Si Si13 1 0.00408900 0.81061800 0.29419700 1.0 Si Si14 1 0.23622400 0.49069500 0.75366800 1.0 Si Si15 1 0.96382100 0.27400300 0.21995200 1.0 Si Si16 1 0.60371000 0.18516500 0.72095300 1.0 Si Si17 1 0.64661100 0.61516600 0.25300700 1.0 Si Si18 1 0.82182100 0.19017300 0.83879200 1.0 Si Si19 1 0.03669700 0.07797100 0.38159400 1.0 Si Si20 1 0.84782800 0.05820700 0.14741000 1.0 Si Si21 1 0.97703500 0.92073500 0.96828400 1.0 Si Si22 1 0.44564700 0.93198900 0.71844900 1.0 Si Si23 1 0.35843700 0.50181900 0.27477300 1.0 Si Si24 1 0.27250700 0.21393700 0.07890300 1.0 Si Si25 1 0.63941600 0.50361600 0.94651900 1.0 Si Si26 1 0.72667000 0.71759700 0.40569200 1.0 Si Si27 1 0.23882700 0.60881200 0.57584400 1.0