data_global _amcsd_formula_title 'Na2KP3O9' loop_ _publ_author_name 'Tordjman I' 'Durif A' 'Cavero-Ghersi C' _journal_name_full 'Acta Crystallographica, Section B' _journal_volume 30 _journal_year 1974 _journal_page_first 2701 _journal_page_last 2704 _publ_section_title ; Structure cristalline du trimetaphosphate de sodium potassium: Na2KP3O9 _cod_database_code 1007266 ; _database_code_amcsd 0015947 _chemical_formula_sum 'K Na2 P3 O9' _cell_length_a 6.886 _cell_length_b 9.494 _cell_length_c 6.797 _cell_angle_alpha 110.07 _cell_angle_beta 104.69 _cell_angle_gamma 86.68 _cell_volume 403.524 _exptl_crystal_density_diffrn 2.650 _symmetry_space_group_name_H-M 'P -1' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z K1 0.03083 0.83467 0.15703 Na1 0.42258 0.83064 0.76932 Na2 0.72064 0.49042 0.71917 P1 0.24217 0.47530 0.75806 P2 0.11632 0.21607 0.37491 P3 0.45633 0.19672 0.71019 O1 0.36536 0.54832 0.66739 O2 0.14144 0.56449 0.92635 O3 -0.07328 0.12716 0.26170 O4 0.23606 0.25584 0.24713 O5 0.50473 0.10071 0.84681 O6 0.07068 0.36402 0.56268 O7 0.37099 0.35222 0.84921 O8 0.25338 0.12726 0.52337 O9 0.60946 0.23183 0.61269