# generated using pymatgen data_Mg4Si7 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 4.32657700 _cell_length_b 6.57138500 _cell_length_c 13.65338106 _cell_angle_alpha 88.32915503 _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 388.02246546 _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 0.91310500 0.92644700 1.0 Mg Mg1 1 0.50000000 0.61797600 0.50793600 1.0 Mg Mg2 1 0.00000000 0.80775000 0.33284000 1.0 Mg Mg3 1 0.00000000 0.43021400 0.65899300 1.0 Mg Mg4 1 0.50000000 0.41686900 0.85426900 1.0 Mg Mg5 1 0.00000000 0.37727100 0.18908600 1.0 Mg Mg6 1 0.00000000 0.29197000 0.41739500 1.0 Mg Mg7 1 0.00000000 0.92802000 0.58695200 1.0 Si Si8 1 0.00000000 0.61735700 0.97852100 1.0 Si Si9 1 0.00000000 0.22884300 0.97638900 1.0 Si Si10 1 0.50000000 0.53096400 0.05472200 1.0 Si Si11 1 0.50000000 0.75913400 0.18908900 1.0 Si Si12 1 0.50000000 0.23732000 0.56195000 1.0 Si Si13 1 0.50000000 0.99169700 0.43803100 1.0 Si Si14 1 0.50000000 0.16160300 0.08088600 1.0 Si Si15 1 0.00000000 0.11450500 0.80648100 1.0 Si Si16 1 0.50000000 0.71677000 0.71098500 1.0 Si Si17 1 0.00000000 0.90352600 0.11461300 1.0 Si Si18 1 0.50000000 0.49750500 0.31848000 1.0 Si Si19 1 0.00000000 0.73672200 0.80712400 1.0 Si Si20 1 0.50000000 0.08755700 0.72036200 1.0 Si Si21 1 0.50000000 0.12965000 0.27201000 1.0