#------------------------------------------------------------------------------ #$Date: 2014-07-11 19:04:56 +0300 (Fri, 11 Jul 2014) $ #$Revision: 120072 $ #$URL: file:///home/coder/svn-repositories/cod/cif/2/00/26/2002628.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_2002628 _chemical_name_systematic 'Sodium ferro(III)titanate' _chemical_formula_structural 'Na (Fe Ti O4)' _chemical_formula_sum 'Fe Na O4 Ti' _publ_section_title ; Zur Existenz des Ca Fe2 O4-Typs von Verbindungen der Zusammensetzung Na A3+ M4+ O4. Roentgenstrukturanalysen von Na Fe Ti O4 und Na0.7 (Fe, Al)0.7 Ti1.3 O4 ; loop_ _publ_author_name 'Mueller-Buschbaum, Hk' 'Frerichs, D' _journal_name_full 'Journal of Alloys Compd.' _journal_volume 199 _journal_year 1993 _journal_page_first L5 _journal_page_last L8 _cell_length_a 9.1663(36) _cell_length_b 2.9624(8) _cell_length_c 10.7277(23) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 291.3 _cell_formula_units_Z 4 _symmetry_space_group_name_H-M 'P n m a' _symmetry_Int_Tables_number 62 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '1/2+x,1/2-y,1/2-z' '-x,1/2+y,-z' '1/2-x,-y,1/2+z' '-x,-y,-z' '1/2-x,1/2+y,1/2+z' 'x,1/2-y,z' '1/2+x,y,1/2-z' loop_ _atom_type_symbol _atom_type_oxidation_number Na1+ 1.000 Fe3+ 3.000 Ti4+ 4.000 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 Na1 Na1+ 4 c 0.2422(7) 0.25 0.3474(7) 1. 0 d Fe1 Fe3+ 4 c 0.0636(3) 0.25 0.1116(3) 0.5 0 d Ti1 Ti4+ 4 c 0.0636(3) 0.25 0.1116(3) 0.5 0 d Fe2 Fe3+ 4 c 0.0839(3) 0.25 0.6045(3) 0.5 0 d Ti2 Ti4+ 4 c 0.0839(3) 0.25 0.6045(3) 0.5 0 d O1 O2- 4 c 0.886(1) 0.25 0.517(1) 1. 0 d O2 O2- 4 c 0.974(1) 0.25 0.286(1) 1. 0 d O3 O2- 4 c 0.296(1) 0.25 0.649(1) 1. 0 d O4 O2- 4 c 0.076(1) 0.25 0.926(1) 1. 0 d _refine_ls_R_factor_all 0.055 _cod_database_code 2002628 _journal_paper_doi 10.1016/0925-8388(93)90420-R