#------------------------------------------------------------------------------ #$Date: 2015-01-27 19:58:39 +0000 (Tue, 27 Jan 2015) $ #$Revision: 130149 $ #$URL: svn://www.crystallography.net/cod/cif/2/00/23/2002339.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_2002339 loop_ _publ_author_name 'Tiedemann, P' 'Mueller-Buschbaum, Hk' _publ_section_title ; Eine kubische Hochtemperaturform von Ca Ta2 O6 ; _journal_name_full ; Zeitschrift fuer Anorganische und Allgemeine Chemie ; _journal_page_first 201 _journal_page_last 206 _journal_paper_doi 10.1002/zaac.19845160925 _journal_volume 516 _journal_year 1984 _chemical_formula_structural 'Ca Ta2 O6' _chemical_formula_sum 'Ca O6 Ta2' _chemical_name_systematic 'Calcium ditantalum oxide' _space_group_IT_number 200 _symmetry_cell_setting cubic _symmetry_Int_Tables_number 200 _symmetry_space_group_name_Hall '-P 2 2 3' _symmetry_space_group_name_H-M 'P m -3' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 7.78 _cell_length_b 7.78 _cell_length_c 7.78 _cell_volume 470.9 _refine_ls_R_factor_all 0.067 _cod_database_code 2002339 loop_ _symmetry_equiv_pos_as_xyz x,y,z x,-y,-z -x,y,-z -x,-y,z y,z,x -y,-z,x y,-z,-x -y,z,-x z,x,y -z,x,-y -z,-x,y z,-x,-y -x,-y,-z -x,y,z x,-y,z x,y,-z -y,-z,-x y,z,-x -y,z,x y,-z,x -z,-x,-y z,-x,y z,x,-y -z,x,y 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 Ca1 Ca2+ 1 b 0.5 0.5 0.5 1. 0 d Ca2 Ca2+ 3 d 0.5 0. 0. 1. 0 d Ta1 Ta5+ 8 i 0.2475(2) 0.2475(2) 0.2475(2) 1. 0 d O1 O2- 12 k 0.5 0.227(7) 0.284(8) 1. 0 d O2 O2- 12 j 0. 0.273(7) 0.220(8) 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Ca2+ 2.000 Ta5+ 5.000 O2- -2.000