# generated using pymatgen data_Mg5Si9 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 10.83214002 _cell_length_b 7.53180804 _cell_length_c 7.61242121 _cell_angle_alpha 120.32691250 _cell_angle_beta 104.35955369 _cell_angle_gamma 91.67815371 _symmetry_Int_Tables_number 1 _chemical_formula_structural Mg5Si9 _chemical_formula_sum 'Mg10 Si18' _cell_volume 510.38586536 _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 0.27028400 0.09288000 0.45481300 1.0 Mg Mg1 1 0.59388900 0.90794800 0.19341500 1.0 Mg Mg2 1 0.40929700 0.47710600 0.94349200 1.0 Mg Mg3 1 0.66294200 0.57202400 0.34437700 1.0 Mg Mg4 1 0.41327300 0.27458100 0.24525100 1.0 Mg Mg5 1 0.55875600 0.68499400 0.71702600 1.0 Mg Mg6 1 0.89100600 0.82637900 0.27487700 1.0 Mg Mg7 1 0.13444300 0.87115300 0.64023200 1.0 Mg Mg8 1 0.92788300 0.36347300 0.01906500 1.0 Mg Mg9 1 0.09402100 0.66692400 0.90930500 1.0 Si Si10 1 0.80536500 0.57929100 0.72898400 1.0 Si Si11 1 0.08980900 0.35806800 0.44521200 1.0 Si Si12 1 0.64146500 0.18885000 0.95724500 1.0 Si Si13 1 0.34011000 0.82345400 0.91155900 1.0 Si Si14 1 0.67437300 0.51153600 0.94887400 1.0 Si Si15 1 0.18358300 0.32984500 0.98397400 1.0 Si Si16 1 0.79990100 0.20647700 0.56729400 1.0 Si Si17 1 0.23293900 0.67377500 0.29704500 1.0 Si Si18 1 0.80249600 0.18702200 0.23365700 1.0 Si Si19 1 0.41822400 0.03656600 0.78191100 1.0 Si Si20 1 0.13091300 0.10715100 0.10938500 1.0 Si Si21 1 0.90396400 0.95553700 0.96996600 1.0 Si Si22 1 0.75049000 0.98667000 0.68828400 1.0 Si Si23 1 0.29470800 0.54600000 0.54461600 1.0 Si Si24 1 0.04207300 0.20566700 0.63418900 1.0 Si Si25 1 0.92121400 0.56347800 0.45932900 1.0 Si Si26 1 0.46624100 0.81076200 0.43181900 1.0 Si Si27 1 0.54662600 0.19248900 0.56518100 1.0