#------------------------------------------------------------------------------ #$Date: 2016-01-03 11:56:39 +0200 (Sun, 03 Jan 2016) $ #$Revision: 172627 $ #$URL: file:///home/coder/svn-repositories/cod/cif/8/10/43/8104338.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_8104338 loop_ _publ_author_name 'Norrestam, R.' 'Dahl, S.' 'Bovin, J.O.' _publ_section_title ; The crystal structure of magnesium-aluminium Ludwigite, Mg2.11 Al.31 Fe.53 Ti.05 Sb.01 B O5, a combined single X-ray and HREM study ; _journal_name_full 'Zeitschrift fuer Kristallographie (149,1979-)' _journal_page_first 201 _journal_page_last 211 _journal_volume 187 _journal_year 1989 _chemical_formula_sum 'Al0.31 B Fe0.53 Mg2.11 O5 Ti0.05' _chemical_name_systematic 'Mg2.11 Al.31 Fe.53 Ti.05 B O5' _space_group_IT_number 55 _symmetry_space_group_name_Hall '-P 2 2ab' _symmetry_space_group_name_H-M 'P b a m' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 9.2324 _cell_length_b 12.2247 _cell_length_c 2.9972 _cell_volume 338.274 _citation_journal_id_ASTM ZEKRDZ _cod_data_source_file Norrestam_ZEKRDZ_1989_366.cif _cod_data_source_block Al0.31B1Fe0.53Mg2.11O5Ti0.05 _cod_chemical_formula_sum_orig 'Al0.31 B1 Fe0.53 Mg2.11 O5 Ti0.05' _cod_database_code 8104338 loop_ _symmetry_equiv_pos_as_xyz x,y,z -x,-y,z x+1/2,-y+1/2,-z -x+1/2,y+1/2,-z -x,-y,-z x,y,-z -x-1/2,y-1/2,z x-1/2,-y-1/2,z loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv B1 B+3 0.773 0.1396 0 1 0.0 Al4 Al+3 0.5003 0.2193 0.5 0.128 0.0 Al1 Al+3 0 0 0.5 0.128 0.0 O1 O-2 0.6235 0.1411 0 1 0.0 Al2 Al+3 0 0.5 0 0.108 0.0 O5 O-2 0.3836 0.0748 0.5 1 0.0 Fe1 Fe+3 0 0.5 0 0.141 0.0 Mg3 Mg+2 0.2372 0.1158 0 0.426 0.0 Mg4 Mg+2 0.5003 0.2193 0.5 0.872 0.0 Mg1 Mg+2 0 0 0.5 0.872 0.0 Ti1 Ti+3 0 0.5 0 0.012 0.0 O2 O-2 -0.1505 0.0426 0 1 0.0 O4 O-2 0.3479 0.262 0 1 0.0 Fe2 Fe+3 0.2372 0.1158 0 0.468 0.0 Al3 Al+3 0.2372 0.1158 0 0.062 0.0 O3 O-2 0.1096 0.1433 0.5 1 0.0 Ti2 Ti+3 0.2372 0.1158 0 0.044 0.0 Mg2 Mg+2 0 0.5 0 0.738 0.0