# generated using pymatgen data_Mg4Si7 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 4.08922800 _cell_length_b 6.70465400 _cell_length_c 14.37682851 _cell_angle_alpha 78.90817235 _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 386.80447487 _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 0.00000000 0.87336600 0.00968200 1.0 Mg Mg1 1 0.50000000 0.52158400 0.50228200 1.0 Mg Mg2 1 0.00000000 0.27196000 0.66251400 1.0 Mg Mg3 1 0.00000000 0.75824300 0.34330700 1.0 Mg Mg4 1 0.50000000 0.82949800 0.17544300 1.0 Mg Mg5 1 0.50000000 0.20562100 0.84645500 1.0 Mg Mg6 1 0.00000000 0.80268400 0.58267600 1.0 Mg Mg7 1 0.00000000 0.24395800 0.41776200 1.0 Si Si8 1 0.50000000 0.17794100 0.04067200 1.0 Si Si9 1 0.50000000 0.68708800 0.89913100 1.0 Si Si10 1 0.00000000 0.38267600 0.97177800 1.0 Si Si11 1 0.50000000 0.52443400 0.06632800 1.0 Si Si12 1 0.50000000 0.92204900 0.43964300 1.0 Si Si13 1 0.50000000 0.12445200 0.55852500 1.0 Si Si14 1 0.00000000 0.89162300 0.81594100 1.0 Si Si15 1 0.00000000 0.13436800 0.18344500 1.0 Si Si16 1 0.50000000 0.48423100 0.31174000 1.0 Si Si17 1 0.50000000 0.56069800 0.69358600 1.0 Si Si18 1 0.00000000 0.53732100 0.80301000 1.0 Si Si19 1 0.00000000 0.51409000 0.17438700 1.0 Si Si20 1 0.50000000 0.13724300 0.28622400 1.0 Si Si21 1 0.50000000 0.91851300 0.71186700 1.0