data_global _amcsd_formula_title 'Fe Na O2' loop_ _publ_author_name 'Bertaut F' 'Delapalme A' 'Bassi G' _journal_name_full 'Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences' _journal_volume 257 _journal_year 1963 _journal_page_first 421 _journal_page_last 424 _publ_section_title ; Structure magnetique de $-beta-Fe Na O2. Raffinement des parameters atomiques _cod_database_code 1008927 ; _database_code_amcsd 0016794 _chemical_formula_sum 'Fe Na O2' _cell_length_a 5.672 _cell_length_b 7.136 _cell_length_c 5.377 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 217.636 _exptl_crystal_density_diffrn 3.383 _symmetry_space_group_name_H-M 'P n a 21' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,z' '1/2-x,1/2+y,1/2+z' '-x,-y,1/2+z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Fe1 0.06200 0.13000 0.00000 Na1 0.41600 0.15100 0.48900 O1 0.04300 0.08400 0.33900 O2 0.38000 0.15300 -0.07300