#------------------------------------------------------------------------------ #$Date: 2008-01-13 22:15:36 +0000 (Sun, 13 Jan 2008) $ #$Revision: 14 $ #$URL: svn://www.crystallography.net/cod/cif/2/2002535.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_2002535 _chemical_name_systematic 'Barium manganese neodymium oxide (5/4/8/21)' _chemical_formula_structural 'Ba5 Mn4 Nd8 O21' _chemical_formula_sum 'Ba5 Mn4 Nd8 O21' _publ_section_title ; Ein neues Oxometallat mit Mangan(II): Ba5 Mn4 Nd8 O21 ; loop_ _publ_author_name 'Mueller-Buschbaum, Hk' 'Kluever, E' _journal_name_full ; Zeitschrift fuer Anorganische und Allgemeine Chemie ; _journal_volume 612 _journal_year 1992 _journal_page_first 21 _journal_page_last 24 _cell_length_a 14.2104(54) _cell_length_b 14.2104(54) _cell_length_c 5.8581(96) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1183.0 _cell_formula_units_Z 2 _symmetry_space_group_name_H-M 'I 4/m' _symmetry_Int_Tables_number 87 _symmetry_cell_setting tetragonal loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,-y,z' '-y,x,z' 'y,-x,z' '-x,-y,-z' 'x,y,-z' 'y,-x,-z' '-y,x,-z' '1/2+x,1/2+y,1/2+z' '1/2-x,1/2-y,1/2+z' '1/2-y,1/2+x,1/2+z' '1/2+y,1/2-x,1/2+z' '1/2-x,1/2-y,1/2-z' '1/2+x,1/2+y,1/2-z' '1/2+y,1/2-x,1/2-z' '1/2-y,1/2+x,1/2-z' loop_ _atom_type_symbol _atom_type_oxidation_number Nd3+ 3.000 Ba2+ 2.000 Mn2+ 2.000 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 Nd1 Nd3+ 8 h 0.2487(2) 0.1675(2) 0. 1. 0 d Nd2 Nd3+ 8 h 0.4108(2) 0.3570(2) 0. 1. 0 d Ba1 Ba2+ 2 a 0. 0. 0. 1. 0 d Ba2 Ba2+ 8 h 0.5312(3) 0.1366(3) 0. 1. 0 d Mn1 Mn2+ 8 h 0.0419(6) 0.2512(6) 0. 1. 0 d O1 O2- 2 b 0. 0. 0.5 1. 0 d O2 O2- 8 h 0.624(2) 0.967(2) 0. 1. 0 d O3 O2- 16 i 0.678(2) 0.547(2) 0.737(5) 1. 0 d O4 O2- 16 i 0.351(2) 0.237(2) 0.242(6) 1. 0 d _refine_ls_R_factor_all 0.053