data_global _amcsd_formula_title 'Ba Fe16.27 O27 Zn1.73' loop_ _publ_author_name 'Collomb A' 'Vallet-Regi M' _journal_name_full 'Materials Research Bulletin' _journal_volume 22 _journal_year 1987 _journal_page_first 753 _journal_page_last 760 _publ_section_title ; Le zinc dans le ferrite hexagonal de type W: Ba Zn2 Fe16 O27 _cod_database_code 1008955 ; _database_code_amcsd 0016821 _chemical_formula_sum 'Ba Fe16.26 Zn1.74 O27' _cell_length_a 5.9333 _cell_length_b 5.9333 _cell_length_c 33.116 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 1009.627 _exptl_crystal_density_diffrn 5.234 _symmetry_space_group_name_H-M 'P 63/m m c' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-x+y,1/2+z' 'x,x-y,1/2-z' '-x+y,-x,1/2-z' 'x-y,x,1/2+z' '-y,-x,z' 'y,x,-z' 'y,-x+y,-z' '-y,x-y,z' 'x-y,-y,1/2+z' '-x+y,y,1/2-z' 'x,y,1/2-z' '-x,-y,1/2+z' 'x,x-y,z' '-x,-x+y,-z' 'x-y,x,-z' '-x+y,-x,z' 'y,x,1/2+z' '-y,-x,1/2-z' '-y,x-y,1/2-z' 'y,-x+y,1/2+z' '-x+y,y,z' 'x-y,-y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Ba1 0.00000 0.00000 0.25000 1.00000 Fe1 0.33333 0.66667 -0.24340 0.50000 Fe2 0.33333 0.66667 -0.42490 1.00000 Fe3 0.50000 0.00000 0.00000 1.00000 Fe4 0.00000 0.00000 0.05710 0.34000 Zn1 0.00000 0.00000 0.05710 0.66000 Fe5 0.33333 0.66667 0.09300 0.79000 Zn2 0.33333 0.66667 0.09300 0.21000 Fe6 0.33333 0.66667 0.20770 1.00000 Fe7 -0.16440 -0.32880 0.15000 1.00000 O1 0.00000 0.00000 0.11240 1.00000 O2 0.33333 0.66667 0.03630 1.00000 O3 0.33333 0.66667 -0.32060 1.00000 O4 0.48330 0.96660 0.25000 1.00000 O5 0.51260 0.02520 0.10980 1.00000 O6 -0.18060 -0.36120 0.03520 1.00000 O7 0.16370 0.32740 0.17890 1.00000