# generated using pymatgen data_Mg4Si7 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 3.97946200 _cell_length_b 6.72349500 _cell_length_c 14.62207897 _cell_angle_alpha 87.68100457 _cell_angle_beta 90.00000000 _cell_angle_gamma 90.00000000 _symmetry_Int_Tables_number 1 _chemical_formula_structural Mg4Si7 _chemical_formula_sum 'Mg8 Si14' _cell_volume 390.90637729 _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 0.50000000 0.93664400 0.93398600 1.0 Mg Mg1 1 0.50000000 0.65898500 0.50437700 1.0 Mg Mg2 1 0.00000000 0.83296200 0.34954900 1.0 Mg Mg3 1 0.00000000 0.46488500 0.65638900 1.0 Mg Mg4 1 0.50000000 0.45195900 0.83801600 1.0 Mg Mg5 1 0.00000000 0.46305900 0.18839500 1.0 Mg Mg6 1 0.00000000 0.34901600 0.41892600 1.0 Mg Mg7 1 0.00000000 0.96681500 0.57881200 1.0 Si Si8 1 0.00000000 0.61832300 0.96103700 1.0 Si Si9 1 0.00000000 0.24893700 0.96424100 1.0 Si Si10 1 0.50000000 0.21731100 0.07417000 1.0 Si Si11 1 0.50000000 0.59308600 0.05955800 1.0 Si Si12 1 0.50000000 0.27370900 0.55692600 1.0 Si Si13 1 0.50000000 0.04138000 0.43672000 1.0 Si Si14 1 0.50000000 0.80156100 0.18893700 1.0 Si Si15 1 0.00000000 0.13797100 0.80606900 1.0 Si Si16 1 0.50000000 0.75753300 0.69257000 1.0 Si Si17 1 0.00000000 0.05008800 0.18251600 1.0 Si Si18 1 0.50000000 0.54970600 0.31824300 1.0 Si Si19 1 0.00000000 0.76732400 0.80453600 1.0 Si Si20 1 0.50000000 0.11992500 0.70651600 1.0 Si Si21 1 0.50000000 0.19514900 0.28306300 1.0