data_global _amcsd_formula_title 'O5 P Ta' loop_ _publ_author_name 'Chahboun H' 'Groult D' 'Hervieu M' 'Raveau B' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 65 _journal_year 1986 _journal_page_first 331 _journal_page_last 342 _publ_section_title ; beta Nb P O5 and beta Ta P O5: Bronzoids, second members of the monophosphate tungsten bronze series (P O2)4 (W O3)2M _cod_database_code 1001681 ; _database_code_amcsd 0013588 _chemical_formula_sum 'Ta P O5' _cell_length_a 13.07 _cell_length_b 5.281 _cell_length_c 13.24 _cell_angle_alpha 90 _cell_angle_beta 120.4 _cell_angle_gamma 90 _cell_volume 788.217 _exptl_crystal_density_diffrn 4.920 _symmetry_space_group_name_H-M 'P 1 21/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,1/2+z' '-x,1/2+y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Ta1 0.43230 0.24800 0.30070 Ta2 0.93890 0.24900 0.13270 P1 0.15000 0.25000 0.05300 P2 0.65200 0.25000 0.08400 O1 0.00000 0.00000 0.25000 O2 0.50000 0.50000 0.25000 O3 0.87800 0.00000 0.01600 O4 0.87800 0.50000 0.01800 O5 0.37800 0.50000 0.37700 O6 0.37700 0.00000 0.37700 O7 0.78700 0.25000 0.13300 O8 0.27900 0.25000 0.15400 O9 0.59700 0.25000 0.45200 O10 0.07800 0.25000 0.11700