data_global _amcsd_formula_title 'F7 Fe Na2 Ni' loop_ _publ_author_name 'Laligant Y' 'Calage Y' 'Heger G' 'Pannetier J' 'Ferey G' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 78 _journal_year 1989 _journal_page_first 66 _journal_page_last 77 _publ_section_title ; Ordered Magnetic Frustration VII. Na2 Ni Fe F7: Reexamination of Its Crystal Structure in the True Space Group after Corrections from Renninger Effect and Refinement of Its Frustrated Magnetic Structure at 4.2 and 55 K _cod_database_code 1000259 ; _database_code_amcsd 0013632 _chemical_formula_sum 'Na2 Ni Fe F7' _cell_length_a 7.203 _cell_length_b 10.256 _cell_length_c 7.429 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 548.810 _exptl_crystal_density_diffrn 3.552 _symmetry_space_group_name_H-M 'I m m a' loop_ _space_group_symop_operation_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,1/2+y,-z' '1/2-x,+y,1/2-z' '-x,y,z' '1/2-x,1/2+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' '-x,1/2-y,z' '1/2-x,-y,1/2+z' '-x,-y,-z' '1/2-x,1/2-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Na1 0.00000 0.00000 0.00000 Na2 0.25000 0.25000 0.75000 Ni1 0.25000 0.25000 0.25000 Fe1 0.00000 0.00000 0.50000 F1 0.00000 0.25000 0.14600 F2 0.00000 0.41600 0.73400 F3 0.19600 0.37600 0.42800