#------------------------------------------------------------------------------ #$Date: 2008-01-26 13:05:32 +0000 (Sat, 26 Jan 2008) $ #$Revision: 19 $ #$URL: svn://www.crystallography.net/cod/cif/2/2002130.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_2002130 _chemical_name_systematic 'Barium dichromo(II)octachromate(III)' _chemical_formula_structural 'Ba (Cr10 O15)' _chemical_formula_sum 'Ba Cr10 O15' _publ_section_title ; Zur Kenntnis neuer Oxochromate: Sr Cr10 O15 und Ba Cr10 O15 mit zweiwertigem Chrom : M Cr(2+)2 Cr(3+)8 O15 ; loop_ _publ_author_name 'Cuno, E' 'Mueller-Buschbaum, Hk' _journal_name_full ; Zeitschrift fuer Anorganische und Allgemeine Chemie ; _journal_volume 572 _journal_year 1989 _journal_page_first 89 _journal_page_last 94 _cell_length_a 10.126(2) _cell_length_b 11.491(2) _cell_length_c 9.392(1) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1092.8 _cell_formula_units_Z 4 _symmetry_space_group_name_H-M 'C c m b' _symmetry_Int_Tables_number 64 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,y,-z' '1/2-x,y,1/2+z' '1/2+x,y,1/2-z' '-x,-y,-z' 'x,-y,z' '1/2+x,-y,1/2-z' '1/2-x,-y,1/2+z' '1/2+x,1/2+y,z' '1/2-x,1/2+y,-z' '-x,1/2+y,1/2+z' 'x,1/2+y,1/2-z' '1/2-x,1/2-y,-z' '1/2+x,1/2-y,z' 'x,1/2-y,1/2-z' '-x,1/2-y,1/2+z' loop_ _atom_type_symbol _atom_type_oxidation_number Ba2+ 2.000 Cr3+ 2.800 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 Ba1 Ba2+ 4 a 0. 0. 0. 1. 0 d Cr1 Cr3+ 16 g 0.1644(1) 0.2460(1) 0.1179(1) 1. 0 d Cr2 Cr3+ 16 g 0.4154(1) 0.6272(1) 0.3580(1) 1. 0 d Cr3 Cr3+ 8 f 0.1826(2) 0. 0.3639(2) 1. 0 d O1 O2- 16 g 0.2370(5) 0.1298(4) 0.5043(7) 1. 0 d O2 O2- 16 g 0.5889(5) 0.1314(5) 0.2434(6) 1. 0 d O3 O2- 8 e 0.3180(8) 0.25 0.25 1. 0 d O4 O2- 8 f 0.3534(8) 0. 0.2579(9) 1. 0 d O5 O2- 8 d 0. 0.2576(7) 0. 1. 0 d O6 O2- 4 b 0. 0.5 0. 1. 0 d _refine_ls_R_factor_all 0.044