data_global _amcsd_formula_title 'Ba K O4 P' loop_ _publ_author_name 'Masse R' 'Durif A' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 71 _journal_year 1987 _journal_page_first 574 _journal_page_last 576 _publ_section_title ; Chemical preparation and crystal structure refinement of K Ba P O4 monophosphate _cod_database_code 1007161 ; _database_code_amcsd 0013607 _chemical_formula_sum 'Ba P K O4' _cell_length_a 7.709 _cell_length_b 5.663 _cell_length_c 9.972 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 435.338 _exptl_crystal_density_diffrn 4.141 _symmetry_space_group_name_H-M 'P n m a' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,z' '-x,1/2+y,-z' '1/2-x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2-z' '1/2+x,y,1/2-z' '1/2-x,-y,1/2+z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Ba1 -0.00928 0.25000 0.19501 P1 0.23610 0.25000 0.91761 K1 0.16190 0.25000 0.58597 O1 0.19760 -0.02680 0.34600 O2 0.03580 0.25000 0.91640 O3 0.30150 0.25000 0.06430