# generated using pymatgen data_Mg5Si9 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 6.89024292 _cell_length_b 7.46070852 _cell_length_c 12.64171191 _cell_angle_alpha 83.82737515 _cell_angle_beta 77.66273599 _cell_angle_gamma 60.25781502 _symmetry_Int_Tables_number 1 _chemical_formula_structural Mg5Si9 _chemical_formula_sum 'Mg10 Si18' _cell_volume 551.22127737 _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 0.48441600 0.05241600 0.72166200 1.0 Mg Mg1 1 0.22485500 0.90398300 0.43517000 1.0 Mg Mg2 1 0.48978200 0.40935700 0.53510300 1.0 Mg Mg3 1 0.78161700 0.56545600 0.37459700 1.0 Mg Mg4 1 0.03542900 0.34048200 0.56678200 1.0 Mg Mg5 1 0.73617100 0.93879800 0.47002500 1.0 Mg Mg6 1 0.41781300 0.76325000 0.17046600 1.0 Mg Mg7 1 0.84113600 0.81167900 0.89017300 1.0 Mg Mg8 1 0.60646200 0.23292900 0.12918600 1.0 Mg Mg9 1 0.49173300 0.59417900 0.94180100 1.0 Si Si10 1 0.90137000 0.73920800 0.14300200 1.0 Si Si11 1 0.15137100 0.34359800 0.89664100 1.0 Si Si12 1 0.85201400 0.19195100 0.33020000 1.0 Si Si13 1 0.18590900 0.80655200 0.70818100 1.0 Si Si14 1 0.21007400 0.52983000 0.23897400 1.0 Si Si15 1 0.76196100 0.27159100 0.78252800 1.0 Si Si16 1 0.21098600 0.20547300 0.27113000 1.0 Si Si17 1 0.74383900 0.60480600 0.74407100 1.0 Si Si18 1 0.01975700 0.18728700 0.13960400 1.0 Si Si19 1 0.87793100 0.07397800 0.62155000 1.0 Si Si20 1 0.09988900 0.05652200 0.85195700 1.0 Si Si21 1 0.09475900 0.91071800 0.03131200 1.0 Si Si22 1 0.58329300 0.93709800 0.28416600 1.0 Si Si23 1 0.14317300 0.49720000 0.72255000 1.0 Si Si24 1 0.51877900 0.21290300 0.93116100 1.0 Si Si25 1 0.84677100 0.51149900 0.04680100 1.0 Si Si26 1 0.54631800 0.72180800 0.59428800 1.0 Si Si27 1 0.14258100 0.58559800 0.42668200 1.0