data_global _amcsd_formula_title 'La3 Nb O7' loop_ _publ_author_name 'Kahn-Harari A' 'Mazerolles L' 'Michel D' 'Robert F' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 116 _journal_year 1995 _journal_page_first 103 _journal_page_last 106 _publ_section_title ; Structural description of La3 Nb O7 _cod_database_code 1001651 ; _database_code_amcsd 0013862 _chemical_formula_sum 'La3 Nb O7' _cell_length_a 7.747 _cell_length_b 11.149 _cell_length_c 7.611 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 657.372 _exptl_crystal_density_diffrn 6.281 _symmetry_space_group_name_H-M 'P n m a' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,z' '-x,1/2+y,-z' '1/2-x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2-z' '1/2+x,y,1/2-z' '1/2-x,-y,1/2+z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z La1 0.25060 0.47590 0.44940 La2 0.00160 0.25000 0.76680 Nb1 0.98890 0.25000 0.25160 O1 0.96000 0.37680 0.42330 O2 0.24870 0.25000 0.31860 O3 0.24910 0.38110 0.72420 O4 0.96370 0.87360 0.93920