# generated using pymatgen data_Mg5Si9 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 6.79809300 _cell_length_b 7.06368635 _cell_length_c 12.73659362 _cell_angle_alpha 100.91223272 _cell_angle_beta 85.48408728 _cell_angle_gamma 116.81876228 _symmetry_Int_Tables_number 1 _chemical_formula_structural Mg5Si9 _chemical_formula_sum 'Mg10 Si18' _cell_volume 535.93569872 _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 0.03166500 0.49916000 0.25868800 1.0 Mg Mg1 1 0.97686800 0.19643200 0.62139700 1.0 Mg Mg2 1 0.38079800 0.86735300 0.45533500 1.0 Mg Mg3 1 0.56313700 0.29900100 0.62796600 1.0 Mg Mg4 1 0.19477800 0.30197500 0.40261200 1.0 Mg Mg5 1 0.83141500 0.67740000 0.52619400 1.0 Mg Mg6 1 0.94237300 0.39245700 0.90027900 1.0 Mg Mg7 1 0.81740200 0.66661100 0.11312900 1.0 Mg Mg8 1 0.28617500 0.88936700 0.88394200 1.0 Mg Mg9 1 0.63690900 0.11949000 0.07550700 1.0 Si Si10 1 0.72009000 0.64778200 0.85114700 1.0 Si Si11 1 0.35116000 0.47030000 0.09824800 1.0 Si Si12 1 0.18783800 0.93495000 0.67633400 1.0 Si Si13 1 0.76411600 0.95937700 0.28548400 1.0 Si Si14 1 0.54804100 0.91913200 0.68482500 1.0 Si Si15 1 0.26396300 0.99203500 0.21189800 1.0 Si Si16 1 0.36927800 0.57089800 0.77077700 1.0 Si Si17 1 0.58878800 0.32859500 0.27485900 1.0 Si Si18 1 0.20631900 0.20469400 0.83119400 1.0 Si Si19 1 0.02645400 0.87740200 0.36131300 1.0 Si Si20 1 0.05129600 0.12630800 0.13358500 1.0 Si Si21 1 0.91950800 0.00246000 0.95089500 1.0 Si Si22 1 0.96831200 0.58094900 0.71963600 1.0 Si Si23 1 0.46882600 0.59892000 0.28110900 1.0 Si Si24 1 0.23984600 0.71999300 0.06080000 1.0 Si Si25 1 0.52757300 0.35230500 0.94909300 1.0 Si Si26 1 0.73907400 0.24453800 0.41520200 1.0 Si Si27 1 0.39818900 0.56041700 0.57876200 1.0