#------------------------------------------------------------------------------ #$Date: 2015-01-27 19:58:39 +0000 (Tue, 27 Jan 2015) $ #$Revision: 130149 $ #$URL: svn://www.crystallography.net/cod/cif/2/00/24/2002457.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_2002457 loop_ _publ_author_name 'Mevs, H' 'Mueller-Buschbaum, Hk' _publ_section_title ; Neue Verbindungen mit Ba6 Ln2 (M3+)4 O15-Typ: Ba6 Nd2 Fe4 O15, Ba5 Sr La2 Fe4 O15 und Ba5 Sr Nd2 Fe4 O15 ; _journal_name_full 'Journal of the Less-Common Metals' _journal_page_first 147 _journal_page_last 152 _journal_paper_doi 10.1016/0022-5088(90)90441-L _journal_volume 158 _journal_year 1990 _chemical_formula_structural 'Ba5 Sr La2 Fe4 O15' _chemical_formula_sum 'Ba5 Fe4 La2 O15 Sr' _chemical_name_systematic ; Pentabarium strontium dilanthanum tetrairon(III) oxide ; _space_group_IT_number 186 _symmetry_cell_setting hexagonal _symmetry_Int_Tables_number 186 _symmetry_space_group_name_Hall 'P 6c -2c' _symmetry_space_group_name_H-M 'P 63 m c' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_formula_units_Z 2 _cell_length_a 11.819(2) _cell_length_b 11.819(2) _cell_length_c 7.052(2) _cell_volume 853.1 _refine_ls_R_factor_all 0.052 _cod_database_code 2002457 loop_ _symmetry_equiv_pos_as_xyz x,y,z -y,x-y,z y-x,-x,z -y,-x,z y-x,y,z x,x-y,z -x,-y,1/2+z y,y-x,1/2+z x-y,x,1/2+z y,x,1/2+z x-y,-y,1/2+z -x,y-x,1/2+z 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 Ba1 Ba2+ 2 a 0. 0. 0. 1. 0 d Ba2 Ba2+ 2 b 0.3333 0.6667 0.4809(9) 1. 0 d Ba3 Ba2+ 6 c 0.3461(2) 0.1730(1) 0.6663(7) 1. 0 d Sr1 Sr2+ 6 c 0.9552(2) 0.4776(1) 0.3292(7) 0.33 0 d La1 La3+ 6 c 0.9552(2) 0.4776(1) 0.3292(7) 0.67 0 d Fe1 Fe3+ 6 c 0.1776(2) 0.8224(2) 0.6635(11) 1. 0 d Fe2 Fe3+ 2 b 0.6667 0.3333 0.5250(15) 1. 0 d O1 O2- 6 c 0.415(1) 0.585(1) 0.167(5) 1. 0 d O2 O2- 6 c 0.751(1) 0.249(1) 0.344(4) 1. 0 d O3 O2- 12 d 0.672(2) 0.064(2) 0.034(3) 1. 0 d O4 O2- 6 c 0.814(3) 0.907(2) 0.768(4) 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Ba2+ 2.000 Sr2+ 2.000 La3+ 3.000 Fe3+ 3.000 O2- -2.000