# generated using pymatgen data_Mg5Si9 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 6.85934400 _cell_length_b 7.74796768 _cell_length_c 10.89766641 _cell_angle_alpha 105.83224670 _cell_angle_beta 92.70296130 _cell_angle_gamma 114.74353374 _symmetry_Int_Tables_number 1 _chemical_formula_structural Mg5Si9 _chemical_formula_sum 'Mg10 Si18' _cell_volume 497.33702117 _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 0.12754500 0.52451600 0.28476300 1.0 Mg Mg1 1 0.93308100 0.17942200 0.59889600 1.0 Mg Mg2 1 0.45397700 0.97097400 0.44477400 1.0 Mg Mg3 1 0.42167500 0.35076800 0.63662000 1.0 Mg Mg4 1 0.37811700 0.31728900 0.35856800 1.0 Mg Mg5 1 0.69141000 0.72408600 0.56862500 1.0 Mg Mg6 1 0.87147600 0.22660500 0.96857000 1.0 Mg Mg7 1 0.85301900 0.62240400 0.12371300 1.0 Mg Mg8 1 0.36716200 0.02861300 0.94647600 1.0 Mg Mg9 1 0.63217600 0.84968500 0.06965500 1.0 Si Si10 1 0.56393100 0.80754000 0.80474000 1.0 Si Si11 1 0.40170500 0.43485500 0.11546000 1.0 Si Si12 1 0.16293500 0.89260800 0.64425800 1.0 Si Si13 1 0.88286500 0.08321600 0.31532800 1.0 Si Si14 1 0.56641600 0.06165700 0.71455400 1.0 Si Si15 1 0.32736600 0.95281600 0.18916700 1.0 Si Si16 1 0.20595800 0.55232200 0.80769100 1.0 Si Si17 1 0.68210000 0.24011000 0.20182500 1.0 Si Si18 1 0.18950300 0.21842900 0.81898700 1.0 Si Si19 1 0.00991900 0.86814200 0.41530700 1.0 Si Si20 1 0.07977400 0.07655800 0.12596100 1.0 Si Si21 1 0.91750100 0.85179500 0.89805500 1.0 Si Si22 1 0.86935600 0.55215700 0.72660900 1.0 Si Si23 1 0.61527200 0.72025900 0.31328700 1.0 Si Si24 1 0.21329800 0.61015500 0.04156200 1.0 Si Si25 1 0.60269400 0.38106700 0.87277300 1.0 Si Si26 1 0.79314400 0.35476200 0.45207900 1.0 Si Si27 1 0.18672400 0.54756900 0.54198700 1.0