# generated using pymatgen data_Na9Cu2O7 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 9.90268900 _cell_length_b 9.90268900 _cell_length_c 9.90268900 _cell_angle_alpha 90.00000000 _cell_angle_beta 90.00000000 _cell_angle_gamma 90.00000000 _symmetry_Int_Tables_number 1 _chemical_formula_structural Na9Cu2O7 _chemical_formula_sum 'Na36 Cu8 O28' _cell_volume 971.08986144 _cell_formula_units_Z 4 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 Na Na0 1 0.01103100 0.29147500 0.83568900 1.0 Na Na1 1 0.03814800 0.78426700 0.17020300 1.0 Na Na2 1 0.06963600 0.06963600 0.06963600 1.0 Na Na3 1 0.10366900 0.60366900 0.89633100 1.0 Na Na4 1 0.16431100 0.51103100 0.20852500 1.0 Na Na5 1 0.17020300 0.03814800 0.78426700 1.0 Na Na6 1 0.20852500 0.16431100 0.51103100 1.0 Na Na7 1 0.21573300 0.67020300 0.46185200 1.0 Na Na8 1 0.23485000 0.23485000 0.23485000 1.0 Na Na9 1 0.26515000 0.76515000 0.73485000 1.0 Na Na10 1 0.28426700 0.32979700 0.96185200 1.0 Na Na11 1 0.29147500 0.83568900 0.01103100 1.0 Na Na12 1 0.32979700 0.96185200 0.28426700 1.0 Na Na13 1 0.33568900 0.48896900 0.70852500 1.0 Na Na14 1 0.39633100 0.39633100 0.39633100 1.0 Na Na15 1 0.43036400 0.93036400 0.56963600 1.0 Na Na16 1 0.46185200 0.21573300 0.67020300 1.0 Na Na17 1 0.48896900 0.70852500 0.33568900 1.0 Na Na18 1 0.51103100 0.20852500 0.16431100 1.0 Na Na19 1 0.53814800 0.71573300 0.82979700 1.0 Na Na20 1 0.56963600 0.43036400 0.93036400 1.0 Na Na21 1 0.60366900 0.89633100 0.10366900 1.0 Na Na22 1 0.66431100 0.98896900 0.79147500 1.0 Na Na23 1 0.67020300 0.46185200 0.21573300 1.0 Na Na24 1 0.70852500 0.33568900 0.48896900 1.0 Na Na25 1 0.71573300 0.82979700 0.53814800 1.0 Na Na26 1 0.73485000 0.26515000 0.76515000 1.0 Na Na27 1 0.76515000 0.73485000 0.26515000 1.0 Na Na28 1 0.78426700 0.17020300 0.03814800 1.0 Na Na29 1 0.79147500 0.66431100 0.98896900 1.0 Na Na30 1 0.82979700 0.53814800 0.71573300 1.0 Na Na31 1 0.83568900 0.01103100 0.29147500 1.0 Na Na32 1 0.89633100 0.10366900 0.60366900 1.0 Na Na33 1 0.93036400 0.56963600 0.43036400 1.0 Na Na34 1 0.96185200 0.28426700 0.32979700 1.0 Na Na35 1 0.98896900 0.79147500 0.66431100 1.0 Cu Cu36 1 0.06788900 0.93211100 0.43211100 1.0 Cu Cu37 1 0.09745200 0.40254800 0.59745200 1.0 Cu Cu38 1 0.40254800 0.59745200 0.09745200 1.0 Cu Cu39 1 0.43211100 0.06788900 0.93211100 1.0 Cu Cu40 1 0.56788900 0.56788900 0.56788900 1.0 Cu Cu41 1 0.59745200 0.09745200 0.40254800 1.0 Cu Cu42 1 0.90254800 0.90254800 0.90254800 1.0 Cu Cu43 1 0.93211100 0.43211100 0.06788900 1.0 O O44 1 0.07571500 0.31313400 0.07602000 1.0 O O45 1 0.08531200 0.83732300 0.91021300 1.0 O O46 1 0.07602000 0.07571500 0.31313400 1.0 O O47 1 0.08978700 0.58531200 0.66267700 1.0 O O48 1 0.16267700 0.41021300 0.41468800 1.0 O O49 1 0.18686600 0.92398000 0.57571500 1.0 O O50 1 0.22030800 0.27969200 0.72030800 1.0 O O51 1 0.27969200 0.72030800 0.22030800 1.0 O O52 1 0.31313400 0.07602000 0.07571500 1.0 O O53 1 0.33732300 0.58978700 0.91468800 1.0 O O54 1 0.41021300 0.41468800 0.16267700 1.0 O O55 1 0.42398000 0.92428500 0.81313400 1.0 O O56 1 0.41468800 0.16267700 0.41021300 1.0 O O57 1 0.42428500 0.68686600 0.57602000 1.0 O O58 1 0.57571500 0.18686600 0.92398000 1.0 O O59 1 0.58531200 0.66267700 0.08978700 1.0 O O60 1 0.57602000 0.42428500 0.68686600 1.0 O O61 1 0.58978700 0.91468800 0.33732300 1.0 O O62 1 0.66267700 0.08978700 0.58531200 1.0 O O63 1 0.68686600 0.57602000 0.42428500 1.0 O O64 1 0.72030800 0.22030800 0.27969200 1.0 O O65 1 0.77969200 0.77969200 0.77969200 1.0 O O66 1 0.81313400 0.42398000 0.92428500 1.0 O O67 1 0.83732300 0.91021300 0.08531200 1.0 O O68 1 0.91021300 0.08531200 0.83732300 1.0 O O69 1 0.92398000 0.57571500 0.18686600 1.0 O O70 1 0.91468800 0.33732300 0.58978700 1.0 O O71 1 0.92428500 0.81313400 0.42398000 1.0