# generated using pymatgen data_Mg5Si9 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 6.70854700 _cell_length_b 7.48982269 _cell_length_c 12.06534880 _cell_angle_alpha 84.00242816 _cell_angle_beta 82.32483648 _cell_angle_gamma 63.54281283 _symmetry_Int_Tables_number 1 _chemical_formula_structural Mg5Si9 _chemical_formula_sum 'Mg10 Si18' _cell_volume 537.18705158 _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 0.50798000 0.02237700 0.28719700 1.0 Mg Mg1 1 0.88075800 0.89360300 0.55874200 1.0 Mg Mg2 1 0.18285100 0.34352200 0.47780800 1.0 Mg Mg3 1 0.72219100 0.56677900 0.67438400 1.0 Mg Mg4 1 0.69100600 0.34327900 0.45589000 1.0 Mg Mg5 1 0.39734000 0.82454400 0.51105900 1.0 Mg Mg6 1 0.59948000 0.91326800 0.89381300 1.0 Mg Mg7 1 0.34602600 0.80319800 0.10983300 1.0 Mg Mg8 1 0.13794800 0.30601600 0.83740000 1.0 Mg Mg9 1 0.93832700 0.58434200 0.03793300 1.0 Si Si10 1 0.27665400 0.76444900 0.85101900 1.0 Si Si11 1 0.49539300 0.35388300 0.09544200 1.0 Si Si12 1 0.99217300 0.16478900 0.66383800 1.0 Si Si13 1 0.05522200 0.78790700 0.29935000 1.0 Si Si14 1 0.04461600 0.67752400 0.75464900 1.0 Si Si15 1 0.00676000 0.25061600 0.20628700 1.0 Si Si16 1 0.57813100 0.18853000 0.69161600 1.0 Si Si17 1 0.70151800 0.57958200 0.24827000 1.0 Si Si18 1 0.76053400 0.21786000 0.84386800 1.0 Si Si19 1 0.08907700 0.05368100 0.38163400 1.0 Si Si20 1 0.83579200 0.06456500 0.15228400 1.0 Si Si21 1 0.94436600 0.94010800 0.97237100 1.0 Si Si22 1 0.38042300 0.97638400 0.70458600 1.0 Si Si23 1 0.40004600 0.47723200 0.27946600 1.0 Si Si24 1 0.27979300 0.20082700 0.04866400 1.0 Si Si25 1 0.60435200 0.52784100 0.93881900 1.0 Si Si26 1 0.81206800 0.66718400 0.40987700 1.0 Si Si27 1 0.33877100 0.50627000 0.61414400 1.0