# generated using pymatgen data_Mg4Si7 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 3.95051500 _cell_length_b 6.85905300 _cell_length_c 14.93747589 _cell_angle_alpha 77.51700546 _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 395.18928462 _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 0.21580800 0.07282300 1.0 Mg Mg1 1 0.50000000 0.38284000 0.49796900 1.0 Mg Mg2 1 0.00000000 0.15063700 0.64883500 1.0 Mg Mg3 1 0.00000000 0.62235300 0.34451100 1.0 Mg Mg4 1 0.50000000 0.71096900 0.15500700 1.0 Mg Mg5 1 0.00000000 0.28083300 0.90226600 1.0 Mg Mg6 1 0.00000000 0.66157500 0.58086600 1.0 Mg Mg7 1 0.00000000 0.10256500 0.42275500 1.0 Si Si8 1 0.00000000 0.58023400 0.04007000 1.0 Si Si9 1 0.00000000 0.93891400 0.04258800 1.0 Si Si10 1 0.50000000 0.57909800 0.93424100 1.0 Si Si11 1 0.00000000 0.89070200 0.87307500 1.0 Si Si12 1 0.50000000 0.77597100 0.44597700 1.0 Si Si13 1 0.50000000 0.98343900 0.55658900 1.0 Si Si14 1 0.50000000 0.08992400 0.79838200 1.0 Si Si15 1 0.00000000 0.99232600 0.20126800 1.0 Si Si16 1 0.50000000 0.34723500 0.30288400 1.0 Si Si17 1 0.00000000 0.62278300 0.77722800 1.0 Si Si18 1 0.50000000 0.40934700 0.69014000 1.0 Si Si19 1 0.00000000 0.36841000 0.19632800 1.0 Si Si20 1 0.50000000 0.98488600 0.29831400 1.0 Si Si21 1 0.50000000 0.81276900 0.71429500 1.0