# generated using pymatgen data_Mg4Si7 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 3.94086300 _cell_length_b 6.93462400 _cell_length_c 14.26606846 _cell_angle_alpha 88.55265465 _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 389.74448597 _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 0.91098600 0.92779600 1.0 Mg Mg1 1 0.50000000 0.61905000 0.50139500 1.0 Mg Mg2 1 0.00000000 0.79248300 0.34977400 1.0 Mg Mg3 1 0.00000000 0.43134200 0.66109500 1.0 Mg Mg4 1 0.50000000 0.43579100 0.84642900 1.0 Mg Mg5 1 0.50000000 0.50799800 0.08687600 1.0 Mg Mg6 1 0.00000000 0.30820500 0.41436100 1.0 Mg Mg7 1 0.00000000 0.93904900 0.58020200 1.0 Si Si8 1 0.00000000 0.61844800 0.96102100 1.0 Si Si9 1 0.00000000 0.25557500 0.97764600 1.0 Si Si10 1 0.50000000 0.12403000 0.07994000 1.0 Si Si11 1 0.00000000 0.86010700 0.09462900 1.0 Si Si12 1 0.50000000 0.24483800 0.55782400 1.0 Si Si13 1 0.50000000 0.00227600 0.44206800 1.0 Si Si14 1 0.50000000 0.80469700 0.20356100 1.0 Si Si15 1 0.00000000 0.11879800 0.81748400 1.0 Si Si16 1 0.50000000 0.74186500 0.69636500 1.0 Si Si17 1 0.00000000 0.30229800 0.21336500 1.0 Si Si18 1 0.50000000 0.50787300 0.30051900 1.0 Si Si19 1 0.00000000 0.75234600 0.80119300 1.0 Si Si20 1 0.50000000 0.10556700 0.71411800 1.0 Si Si21 1 0.50000000 0.11275400 0.27587800 1.0