# generated using pymatgen data_Mg7Si4 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 3.54980600 _cell_length_b 8.51280600 _cell_length_c 14.82803906 _cell_angle_alpha 87.73996542 _cell_angle_beta 90.00000000 _cell_angle_gamma 90.00000000 _symmetry_Int_Tables_number 1 _chemical_formula_structural Mg7Si4 _chemical_formula_sum 'Mg14 Si8' _cell_volume 447.73714673 _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 0.13157200 0.88624000 1.0 Mg Mg1 1 0.50000000 0.50425900 0.50698600 1.0 Mg Mg2 1 0.00000000 0.34701700 0.37060100 1.0 Mg Mg3 1 0.00000000 0.59538200 0.66351900 1.0 Mg Mg4 1 0.50000000 0.66749700 0.82453900 1.0 Mg Mg5 1 0.50000000 0.22226800 0.21895300 1.0 Mg Mg6 1 0.00000000 0.75986400 0.41318700 1.0 Mg Mg7 1 0.00000000 0.21239800 0.57105100 1.0 Mg Mg8 1 0.00000000 0.27271900 0.03936700 1.0 Mg Mg9 1 0.00000000 0.84648800 0.94771100 1.0 Mg Mg10 1 0.50000000 0.57109000 0.03350200 1.0 Mg Mg11 1 0.50000000 0.98552800 0.08294500 1.0 Mg Mg12 1 0.50000000 0.86709300 0.58341800 1.0 Mg Mg13 1 0.50000000 0.05988900 0.40596900 1.0 Si Si14 1 0.00000000 0.77013700 0.15638200 1.0 Si Si15 1 0.00000000 0.91654400 0.75266200 1.0 Si Si16 1 0.50000000 0.36641900 0.74526800 1.0 Si Si17 1 0.50000000 0.56642200 0.29513000 1.0 Si Si18 1 0.00000000 0.48532600 0.18725800 1.0 Si Si19 1 0.00000000 0.40782900 0.85379200 1.0 Si Si20 1 0.50000000 0.09016000 0.70663300 1.0 Si Si21 1 0.50000000 0.85770100 0.25849800 1.0