# generated using pymatgen data_Mg5Si9 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 7.97004093 _cell_length_b 7.82651888 _cell_length_c 9.77655944 _cell_angle_alpha 84.02180807 _cell_angle_beta 90.70969738 _cell_angle_gamma 123.49055567 _symmetry_Int_Tables_number 1 _chemical_formula_structural Mg5Si9 _chemical_formula_sum 'Mg10 Si18' _cell_volume 505.07794375 _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 0.54040100 0.08379700 0.79017800 1.0 Mg Mg1 1 0.18357400 0.91368300 0.40402600 1.0 Mg Mg2 1 0.95165900 0.45589600 0.55135600 1.0 Mg Mg3 1 0.28841000 0.57435800 0.34075200 1.0 Mg Mg4 1 0.22260900 0.22193200 0.57876400 1.0 Mg Mg5 1 0.72554700 0.68487600 0.40516500 1.0 Mg Mg6 1 0.36907600 0.97153800 0.08362800 1.0 Mg Mg7 1 0.68041200 0.79259600 0.88217100 1.0 Mg Mg8 1 0.87409400 0.21945100 0.05818400 1.0 Mg Mg9 1 0.08682800 0.63367500 0.87057400 1.0 Si Si10 1 0.61224600 0.79967700 0.15817300 1.0 Si Si11 1 0.40754300 0.35664700 0.92638000 1.0 Si Si12 1 0.95438400 0.16701800 0.37304300 1.0 Si Si13 1 0.93268500 0.76807900 0.66325100 1.0 Si Si14 1 0.96858200 0.60166600 0.24145200 1.0 Si Si15 1 0.97485100 0.22601600 0.78589700 1.0 Si Si16 1 0.56384200 0.32858000 0.25923200 1.0 Si Si17 1 0.34041800 0.55110400 0.72438700 1.0 Si Si18 1 0.19865400 0.21581500 0.19399600 1.0 Si Si19 1 0.80878100 0.98971800 0.60909400 1.0 Si Si20 1 0.12548600 0.01578900 0.86699600 1.0 Si Si21 1 0.95200800 0.86527600 0.10068400 1.0 Si Si22 1 0.60065200 0.02557300 0.30698000 1.0 Si Si23 1 0.58999700 0.46234000 0.68572600 1.0 Si Si24 1 0.72826700 0.46380400 0.02723800 1.0 Si Si25 1 0.30297900 0.54602400 0.05420700 1.0 Si Si26 1 0.47088100 0.85168000 0.54338600 1.0 Si Si27 1 0.54543200 0.21358000 0.51486800 1.0