data_global _amcsd_formula_title 'F6 W' loop_ _publ_author_name 'Levy J' 'Taylor J' 'Waugh A' _journal_name_full 'Journal of Fluorine Chemistry' _journal_volume 23 _journal_year 1983 _journal_page_first 29 _journal_page_last 36 _publ_section_title ; Neutron powder structural studies of U F6, Mo F6 and W F6 at 77 K _cod_database_code 1008213 ; _database_code_amcsd 0016149 _chemical_formula_sum 'W F6' _cell_length_a 9.422 _cell_length_b 8.569 _cell_length_c 4.980 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 402.071 _exptl_crystal_density_diffrn 4.920 _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 W1 0.12780 0.25000 0.08560 F1 0.01150 0.25000 -0.20860 F2 0.24320 0.25000 0.36950 F3 0.01770 0.09790 0.23810 F4 0.23870 0.09320 -0.06240