#------------------------------------------------------------------------------ #$Date: 2016-01-01 14:36:30 +0200 (Fri, 01 Jan 2016) $ #$Revision: 172375 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/54/11/1541136.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_1541136 loop_ _publ_author_name 'Pors, F.' 'Laurent, Y.' 'Bacher, P.' 'Marchand, R.' 'Roult, G.' _publ_section_title ; Neutron diffraction study of the SrTaO2N oxynitride perovskite and of the Ba1-xSrxTaO2N solid solution ; _journal_name_full ; Revue Internationale des Hautes Temperatures et des Refractaires ; _journal_page_first 239 _journal_page_last 246 _journal_volume 24 _journal_year 1988 _chemical_formula_sum 'N O2 Sr Ta' _chemical_name_systematic 'Sr Ta O2 N' _space_group_IT_number 121 _symmetry_space_group_name_Hall 'I -4 2' _symmetry_space_group_name_H-M 'I -4 2 m' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 5.6919 _cell_length_b 5.6919 _cell_length_c 8.0905 _cell_volume 262.114 _citation_journal_id_ASTM RIHTAV _cod_data_source_file Pors_RIHTAV_1988_1498.cif _cod_data_source_block N1O2Sr1Ta1 _cod_original_cell_volume 262.1138 _cod_chemical_formula_sum_orig 'N1 O2 Sr1 Ta1' _cod_database_code 1541136 loop_ _symmetry_equiv_pos_as_xyz x,y,z y,-x,-z -x,-y,z -y,x,-z x,-y,-z -y,-x,z -x,y,-z y,x,z x+1/2,y+1/2,z+1/2 y+1/2,-x+1/2,-z+1/2 -x+1/2,-y+1/2,z+1/2 -y+1/2,x+1/2,-z+1/2 x+1/2,-y+1/2,-z+1/2 -y+1/2,-x+1/2,z+1/2 -x+1/2,y+1/2,-z+1/2 y+1/2,x+1/2,z+1/2 loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv O1 O-2 0 0.5 0 0.5 0.0 Sr2 Sr+2 0 0 0.5 1 0.0 N2 N-3 0.2703 0.2703 0.2387 0.25 0.0 Ta1 Ta+5 0 0.5 0.25 1 0.0 N1 N-3 0 0.5 0 0.5 0.0 Sr1 Sr+2 0 0 0 1 0.0 O2 O-2 0.2703 0.2703 0.2387 0.75 0.0