# generated using pymatgen data_Mg4Si7 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 3.75404100 _cell_length_b 6.73336200 _cell_length_c 15.73057933 _cell_angle_alpha 77.90533959 _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 388.80062506 _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 0.13329200 0.07025900 1.0 Mg Mg1 1 0.00000000 0.23324300 0.48763400 1.0 Mg Mg2 1 0.50000000 0.01966000 0.63457400 1.0 Mg Mg3 1 0.50000000 0.49661700 0.33380400 1.0 Mg Mg4 1 0.00000000 0.57777000 0.15294300 1.0 Mg Mg5 1 0.50000000 0.79878700 0.82016200 1.0 Mg Mg6 1 0.50000000 0.49993800 0.58142300 1.0 Mg Mg7 1 0.50000000 0.94911500 0.41710400 1.0 Si Si8 1 0.50000000 0.47198000 0.02083500 1.0 Si Si9 1 0.50000000 0.83553100 0.03318000 1.0 Si Si10 1 0.00000000 0.96096300 0.91617100 1.0 Si Si11 1 0.00000000 0.51007200 0.91274800 1.0 Si Si12 1 0.00000000 0.63370100 0.44021000 1.0 Si Si13 1 0.00000000 0.81644700 0.55630600 1.0 Si Si14 1 0.50000000 0.38445100 0.76578300 1.0 Si Si15 1 0.50000000 0.87946800 0.18819400 1.0 Si Si16 1 0.00000000 0.20774500 0.30200600 1.0 Si Si17 1 0.50000000 0.21247500 0.91848400 1.0 Si Si18 1 0.00000000 0.14596300 0.74747600 1.0 Si Si19 1 0.50000000 0.25725800 0.19341200 1.0 Si Si20 1 0.00000000 0.83934200 0.29022100 1.0 Si Si21 1 0.00000000 0.63984900 0.71348200 1.0