#------------------------------------------------------------------------------ #$Date: 2023-03-24 18:37:27 +0200 (Fri, 24 Mar 2023) $ #$Revision: 282053 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/00/33/9003340.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/. The original data for this entry # were provided the American Mineralogist Crystal Structure Database, # http://rruff.geo.arizona.edu/AMS/amcsd.php # # The file may be used within the scientific community so long as # proper attribution is given to the journal article from which the # data were obtained. # data_9003340 loop_ _publ_author_name 'Redhammer, G. J.' 'Tippelt, G.' 'Roth, G.' 'Amthauer, G.' _publ_section_title ; Structural variations in the brownmillerite series Ca2(Fe2-xAlx)O5: Single-crystal X-ray diffraction at 25 deg C and high temperature X-ray powder diffraction (25 C <= T <= 1000 C) Sample: bht030_3 ; _journal_name_full 'American Mineralogist' _journal_page_first 405 _journal_page_last 420 _journal_volume 89 _journal_year 2004 _chemical_compound_source Synthetic _chemical_formula_sum 'Al0.365 Ca2 Fe1.635 O5' _chemical_name_mineral Brownmillerite _space_group_IT_number 62 _symmetry_space_group_name_Hall '-P 2ac 2n' _symmetry_space_group_name_H-M 'P n m a' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_length_a 5.4027 _cell_length_b 14.6779 _cell_length_c 5.5923 _cell_volume 443.471 _database_code_amcsd 0003429 _exptl_crystal_density_diffrn 3.914 _cod_original_formula_sum 'Ca2 (Fe1.635 Al.365) O5' _cod_database_code 9003340 loop_ _space_group_symop_operation_xyz x,y,z x,1/2-y,z -x,1/2+y,-z 1/2-x,1/2+y,1/2+z 1/2+x,1/2-y,1/2-z 1/2+x,y,1/2-z 1/2-x,-y,1/2+z -x,-y,-z loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv Ca 0.48378 0.10821 0.02456 1.00000 0.00890 FeM 0.00000 0.00000 0.00000 0.93200 0.00600 AlM 0.00000 0.00000 0.00000 0.06800 0.00600 FeT 0.94757 0.25000 0.93200 0.70300 0.00460 AlT 0.94757 0.25000 0.93200 0.29700 0.00460 O1 0.25960 0.98490 0.24040 1.00000 0.00840 O2 0.02270 0.14190 0.07190 1.00000 0.01090 O3 0.60340 0.25000 0.86980 1.00000 0.00990