data_global _amcsd_formula_title 'Fe2 O9 Pb1.01 Sr4' loop_ _publ_author_name 'Caignaert V' 'Daniel P' 'Nguyen N' 'Ducouret A' 'Groult D' 'Raveau B' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 112 _journal_year 1994 _journal_page_first 126 _journal_page_last 131 _publ_section_title ; Structure refinement of the 0201-1201 intergrowth-type ferrite PbSr4Fe2O9: powder neutron diffraction and Mossbauer spectroscopy studies _cod_database_code 1001606 ; _database_code_amcsd 0013824 _chemical_formula_sum 'Pb1.01 Sr4 Fe2 O9' _cell_length_a 3.84845 _cell_length_b 3.84845 _cell_length_c 30.68379 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 454.444 _exptl_crystal_density_diffrn 5.959 _symmetry_space_group_name_H-M 'I 4/m m m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' '-y,-x,z' '1/2-y,1/2-x,1/2+z' 'y,x,-z' '1/2+y,1/2+x,1/2-z' 'y,-x,-z' '1/2+y,1/2-x,1/2-z' '-y,x,z' '1/2-y,1/2+x,1/2+z' 'x,-y,z' '1/2+x,1/2-y,1/2+z' '-x,y,-z' '1/2-x,1/2+y,1/2-z' 'x,y,-z' '1/2+x,1/2+y,1/2-z' '-x,-y,z' '1/2-x,1/2-y,1/2+z' 'y,x,z' '1/2+y,1/2+x,1/2+z' '-y,-x,-z' '1/2-y,1/2-x,1/2-z' '-y,x,-z' '1/2-y,1/2+x,1/2-z' 'y,-x,z' '1/2+y,1/2-x,1/2+z' '-x,y,z' '1/2-x,1/2+y,1/2+z' 'x,-y,-z' '1/2+x,1/2-y,1/2-z' '-x,-y,-z' '1/2-x,1/2-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Pb1 0.00000 0.00000 0.00000 0.62000 Pb2 0.14000 0.00000 0.00000 0.09750 Sr1 0.50000 0.50000 0.08550 1.00000 Sr2 0.50000 0.50000 0.20500 1.00000 Fe1 0.00000 0.00000 0.15120 1.00000 O1 0.14100 0.00000 0.50000 0.25000 O2 0.00000 0.00000 0.06420 1.00000 O3 0.50000 0.00000 0.14190 1.00000 O4 0.00000 0.00000 0.21450 1.00000 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 O2 0.03480 0.03480 0.05010 0.00000 0.00000 0.00000