# generated using pymatgen data_Mg4Si7 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 4.26786600 _cell_length_b 6.54329300 _cell_length_c 14.30504162 _cell_angle_alpha 78.48474808 _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 391.44021267 _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 0.71131300 0.07627600 1.0 Mg Mg1 1 0.50000000 0.23380200 0.49435300 1.0 Mg Mg2 1 0.00000000 0.33635800 0.63034700 1.0 Mg Mg3 1 0.00000000 0.10946200 0.34285100 1.0 Mg Mg4 1 0.50000000 0.18756700 0.15161600 1.0 Mg Mg5 1 0.50000000 0.36285500 0.92260300 1.0 Mg Mg6 1 0.00000000 0.88620300 0.58323700 1.0 Mg Mg7 1 0.00000000 0.58913600 0.41431900 1.0 Si Si8 1 0.00000000 0.40991300 0.04698600 1.0 Si Si9 1 0.00000000 0.03738500 0.02256300 1.0 Si Si10 1 0.00000000 0.12718700 0.81476900 1.0 Si Si11 1 0.00000000 0.72140200 0.92251800 1.0 Si Si12 1 0.50000000 0.88273800 0.43514700 1.0 Si Si13 1 0.50000000 0.58745500 0.56026800 1.0 Si Si14 1 0.50000000 0.95291300 0.89193800 1.0 Si Si15 1 0.00000000 0.87996200 0.19387100 1.0 Si Si16 1 0.50000000 0.42507500 0.29691900 1.0 Si Si17 1 0.00000000 0.53286800 0.79143600 1.0 Si Si18 1 0.50000000 0.05306900 0.70458300 1.0 Si Si19 1 0.00000000 0.49782300 0.20265800 1.0 Si Si20 1 0.50000000 0.80010600 0.28190900 1.0 Si Si21 1 0.50000000 0.67539000 0.71523100 1.0