# generated using pymatgen data_Mg5Si9 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 12.96293176 _cell_length_b 7.63170798 _cell_length_c 5.84399598 _cell_angle_alpha 62.84208051 _cell_angle_beta 77.21345591 _cell_angle_gamma 83.67977476 _symmetry_Int_Tables_number 1 _chemical_formula_structural Mg5Si9 _chemical_formula_sum 'Mg10 Si18' _cell_volume 501.61946395 _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 0.71172600 0.06794300 0.97972700 1.0 Mg Mg1 1 0.42240200 0.02180200 0.18241500 1.0 Mg Mg2 1 0.56844100 0.37817400 0.62031400 1.0 Mg Mg3 1 0.37858200 0.54929000 0.35226500 1.0 Mg Mg4 1 0.56002700 0.35893600 0.12546900 1.0 Mg Mg5 1 0.45208700 0.74434200 0.74181900 1.0 Mg Mg6 1 0.07177500 0.88222900 0.23845600 1.0 Mg Mg7 1 0.85526800 0.82220100 0.62973500 1.0 Mg Mg8 1 0.02990000 0.44489900 0.05932200 1.0 Mg Mg9 1 0.87843700 0.75642400 0.16628200 1.0 Si Si10 1 0.22597500 0.60043200 0.07090700 1.0 Si Si11 1 0.96818700 0.47986100 0.58646000 1.0 Si Si12 1 0.42829100 0.13106400 0.58281000 1.0 Si Si13 1 0.66289200 0.76041000 0.46766400 1.0 Si Si14 1 0.23053400 0.72805400 0.59552700 1.0 Si Si15 1 0.77332200 0.22094500 0.40937600 1.0 Si Si16 1 0.21114300 0.20913100 0.10990700 1.0 Si Si17 1 0.74198600 0.55305700 0.09163900 1.0 Si Si18 1 0.20320600 0.10612700 0.57875100 1.0 Si Si19 1 0.61698800 0.00162600 0.64359000 1.0 Si Si20 1 0.90318900 0.15126700 0.08475500 1.0 Si Si21 1 0.05015100 0.88922800 0.73151500 1.0 Si Si22 1 0.27937900 0.93561600 0.97948500 1.0 Si Si23 1 0.75264800 0.46561700 0.73991600 1.0 Si Si24 1 0.92470200 0.16128800 0.63631200 1.0 Si Si25 1 0.16343100 0.43589800 0.57042600 1.0 Si Si26 1 0.57478200 0.72860600 0.14534700 1.0 Si Si27 1 0.36030000 0.41556100 0.87964900 1.0