data_global _amcsd_formula_title 'Ba0.84 Nb8 O34 P5 Rb3' loop_ _publ_author_name 'Gueho C' 'Borel M' 'Grandin A' 'Leclaire A' 'Raveau B' _journal_name_full 'Acta Crystallographica, Section C' _journal_volume 48 _journal_year 1992 _journal_page_first 2066 _journal_page_last 2067 _publ_section_title ; Structure of Ba0.84Rb3Nb8P5O34 _cod_database_code 1001535 ; _database_code_amcsd 0010278 _chemical_formula_sum 'Ba.84 Rb3 Nb8 P5 O34' _cell_length_a 10.6604 _cell_length_b 10.6604 _cell_length_c 6.4434 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 732.255 _exptl_crystal_density_diffrn 4.113 _symmetry_space_group_name_H-M 'P -4 m 2' loop_ _space_group_symop_operation_xyz 'x,y,z' 'y,x,-z' 'y,-x,-z' 'x,-y,z' '-x,-y,z' '-y,-x,-z' '-y,x,-z' '-x,y,z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Ba1 0.50000 0.50000 0.50000 0.84000 Rb1 0.00000 0.00000 0.50000 1.00000 Rb2 0.00000 0.50000 0.29120 1.00000 Nb1 0.50000 0.18040 0.19910 1.00000 Nb2 0.17662 0.17662 0.00000 1.00000 P1 0.50000 0.50000 0.00000 1.00000 P2 0.24230 0.24230 0.50000 1.00000 O1 0.50000 0.00000 0.25600 1.00000 O2 0.36580 0.17460 0.02500 1.00000 O3 0.38110 0.22110 0.45100 1.00000 O4 0.50000 0.38400 0.14300 1.00000 O5 0.17800 0.00000 0.03200 1.00000 O6 0.16110 0.20170 0.31300 1.00000