#------------------------------------------------------------------------------ #$Date: 2012-02-28 14:14:52 +0200 (Tue, 28 Feb 2012) $ #$Revision: 35911 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/12/1001229.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_1001229 _chemical_name_systematic ; DILITHIUM DICHROMIUM IRON(III) ANTIMONY(V) OXIDE ; _chemical_formula_structural 'LI2 CR2 FE SB O8' _chemical_formula_sum 'Cr2 Fe Li2 O8 Sb' _publ_section_title ; Hexagonal-spinel transitions in antimonates Li~2~ Cr(~3-x~) M(III)~x~ Sb O~8~ ; loop_ _publ_author_name 'Tarte, P' 'Cahay, R' 'Preudhomme, J' 'Hervieu, M' 'Choisnet, J' 'Raveau, B' _journal_name_full 'Journal of Solid State Chemistry' _journal_coden_ASTM JSSCBI _journal_volume 44 _journal_year 1982 _journal_page_first 282 _journal_page_last 289 _cell_length_a 5.867(2) _cell_length_b 5.867(2) _cell_length_c 9.542(5) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 284.4 _cell_formula_units_Z 2 _symmetry_space_group_name_H-M 'P 63 m c' _symmetry_Int_Tables_number 186 _symmetry_cell_setting hexagonal 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_type_symbol _atom_type_oxidation_number Li1+ 1.000 Cr3+ 3.000 Fe3+ 3.000 Sb5+ 5.000 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 Li1 Li1+ 2 b 0.3333 0.6667 -0.097(6) 1. 0 d Li2 Li1+ 2 a 0. 0. 0.523(12) 1. 0 d Cr1 Cr3+ 6 c 0.1710(4) -0.1710(4) 0.2118(6) 0.6667 0 d Fe1 Fe3+ 6 c 0.1710(4) -0.1710(4) 0.2118(6) 0.3333 0 d Sb1 Sb5+ 2 b 0.3333 0.6667 0.4914(2) 1. 0 d O1 O2- 2 a 0. 0. 0.310(3) 1. 0 d O2 O2- 2 b 0.3333 0.6667 0.101(4) 1. 0 d O3 O2- 6 c 0.475(1) -0.475(1) 0.365(4) 1. 0 d O4 O2- 6 c 0.171(2) -0.171(2) 0.598(5) 1. 0 d _refine_ls_R_factor_all 0.052 _cod_database_code 1001229