data_global _amcsd_formula_title 'H4 K2 Na2 O14 P4' loop_ _publ_author_name 'Averbuch-Pouchot M' 'Durif A' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 58 _journal_year 1985 _journal_page_first 119 _journal_page_last 132 _publ_section_title ; Contribution to the crystal chemistry of tetrametaphosphates (I). _cod_database_code 1007173 ; _database_code_amcsd 0013549 _chemical_formula_sum 'K Na P2 O7 H2' _cell_length_a 11.341 _cell_length_b 7.907 _cell_length_c 7.918 _cell_angle_alpha 89.94 _cell_angle_beta 106.95 _cell_angle_gamma 95.61 _cell_volume 675.655 _exptl_crystal_density_diffrn 2.340 _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 0.43767 0.22608 0.64107 K2 0.06139 0.34210 0.76355 Na1 0.42060 0.66670 0.85250 Na2 0.07762 0.12350 0.20970 P1 0.29076 0.44672 0.15962 P2 0.21053 0.78151 0.06786 P3 0.28748 0.85313 0.44719 P4 0.20919 0.49185 0.47291 O1 0.19820 0.57700 0.07960 O2 0.31070 0.83230 0.25540 O3 0.18850 0.69110 0.44310 O4 0.31030 0.46680 0.36900 O5 0.22900 0.27540 0.09270 O6 0.41100 0.50710 0.13100 O7 0.09050 0.84590 0.05750 O8 0.27270 0.82380 0.93050 O9 0.40750 0.83480 0.57970 O10 0.22400 0.00780 0.44940 O11 0.27190 0.46420 0.66080 O12 0.08890 0.39510 0.38240 O13 0.41230 0.14330 0.96460 O14 0.09070 0.01210 0.69620 H1 0.35000 0.17500 0.00100 H2 0.40400 0.04900 -0.01400 H3 0.11600 0.01700 0.61000 H4 0.14900 0.96600 0.77000