#------------------------------------------------------------------------------ #$Date: 2014-07-11 17:35:18 +0300 (Fri, 11 Jul 2014) $ #$Revision: 120071 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/88/1008810.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_1008810 _chemical_name_systematic ; Cobalt magnesium germanium oxide (7.25/6.75/5/24) ; _chemical_formula_structural '(Co7.25 Mg6.75) Ge5 O24' _chemical_formula_sum 'Co7.25 Ge5 Mg6.75 O24' _publ_section_title ; A new structural family: M10n-2 Ge3n+1 O16n with M = (Co, Mg) and (Ni, Mg) ; loop_ _publ_author_name 'Levy, D' 'Barbier, J' _journal_name_full 'Journal of Solid State Chemistry' _journal_coden_ASTM JSSCBI _journal_volume 130 _journal_year 1997 _journal_page_first 9 _journal_page_last 19 _cell_length_a 14.537(2) _cell_length_b 10.219(2) _cell_length_c 5.950(1) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 883.9 _cell_formula_units_Z 2 _symmetry_space_group_name_H-M 'P b a m' _symmetry_Int_Tables_number 55 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,-y,z' '1/2+x,1/2-y,-z' '1/2-x,1/2+y,-z' '-x,-y,-z' 'x,y,-z' '1/2-x,1/2+y,z' '1/2+x,1/2-y,z' loop_ _atom_type_symbol _atom_type_oxidation_number Ge4+ 4.000 Co2+ 2.000 Mg2+ 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 Ge1 Ge4+ 2 a 0. 0. 0. 1. 0 d Ge2 Ge4+ 4 g 0.1256(1) 0.5016(1) 0. 1. 0 d Ge3 Ge4+ 4 h 0.1860(1) 0.3238(1) 0.5 1. 0 d Co1 Co2+ 2 d 0. 0.5 0.5 0.342 0 d Mg1 Mg2+ 2 d 0. 0.5 0.5 0.658 0 d Co2 Co2+ 2 b 0. 0. 0.5 0.898 0 d Mg2 Mg2+ 2 b 0. 0. 0.5 0.102 0 d Co3 Co2+ 4 g 0.1749(1) 0.1777(1) 0. 0.258 0 d Mg3 Mg2+ 4 g 0.1749(1) 0.1777(1) 0. 0.742 0 d Co4 Co2+ 4 h 0.3269(1) 0.1469(1) 0.5 0.383 0 d Mg4 Mg2+ 4 h 0.3269(1) 0.1469(1) 0.5 0.617 0 d Co5 Co2+ 8 i -0.0044(1) 0.2522(1) 0.2406(1) 0.517 0 d Mg5 Mg2+ 8 i -0.0044(1) 0.2522(1) 0.2406(1) 0.483 0 d Co6 Co2+ 8 i 0.3309(1) 0.4186(1) 0.2457(1) 0.666 0 d Mg6 Mg2+ 8 i 0.3309(1) 0.4186(1) 0.2457(1) 0.334 0 d O1 O2- 4 g 0.0844(1) 0.3380(2) 0. 1. 0 d O2 O2- 4 g 0.4221(1) 0.3496(2) 0. 1. 0 d O3 O2- 4 g 0.2524(1) 0.0038(2) 0. 1. 0 d O4 O2- 4 h 0.0680(1) 0.3301(2) 0.5 1. 0 d O5 O2- 4 h 0.4127(1) 0.3300(2) 0.5 1. 0 d O6 O2- 4 h 0.2579(1) -0.0233(2) 0.5 1. 0 d O7 O2- 8 i 0.0751(1) 0.0779(1) 0.2220(2) 1. 0 d O8 O2- 8 i 0.4141(1) 0.0803(1) 0.2472(2) 1. 0 d O9 O2- 8 i 0.2420(1) 0.2498(1) 0.2730(3) 1. 0 d _refine_ls_R_factor_all 0.039 _cod_database_code 1008810 _journal_paper_doi 10.1006/jssc.1997.7252