data_1001711 _chemical_name_systematic ; Dilead distrontium copper(I) iron(III) oxide ; _chemical_formula_structural 'Pb2 Sr2 Cu Fe O6' _chemical_formula_sum 'Cu Fe O6 Pb2 Sr2' _publ_section_title ; An ordered oxygen deficient K2 Ni F4 structure: Pb2 Sr2 Cu Fe O6 ; loop_ _publ_author_name 'Rouillon, T' 'Caldes, M T' 'Genouel, R' 'Michel, C' 'Hervieu, M' 'Raveau, B' _journal_name_full 'Journal of Materials Chemistry' _journal_coden_ASTM JMACEP _journal_volume 5 _journal_year 1995 _journal_page_first 1163 _journal_page_last 1170 _journal_issue 8 _cell_length_a 5.4606(3) _cell_length_b 5.5228(3) _cell_length_c 12.2112(6) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 368.3 _cell_formula_units_Z 2 _symmetry_space_group_name_H-M 'P 2 a n' _symmetry_Int_Tables_number 30 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' 'x,-y,-z' '1/2+x,1/2+y,-z' '1/2+x,1/2-y,z' loop_ _atom_type_symbol _atom_type_oxidation_number Cu1+ 1.000 Pb2+ 2.000 Sr2+ 2.000 Fe3+ 3.000 O2- -2.000 loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens _atom_site_calc_flag Cu1 Cu1+ 2 a 0. 0. 0. 1. 0 d Pb1 Pb2+ 4 c 0. 0.506(1) 0.1445(2) 1. 0 d Sr1 Sr2+ 4 c 0. -0.002(3) 0.3567(4) 1. 0 d Fe1 Fe3+ 2 b 0.5 0. 0.5 1. 0 d O1 O2- 4 c 0.108(6) -0.090(6) 0.145(3) 1. 0 d O2 O2- 4 c 0. 0.5 0.332(3) 1. 0 d O3 O2- 4 c 0.25 0.25 0.5 1. 0 d _refine_ls_R_factor_all 0.06