data_1008000 _chemical_name_systematic 'MOLYBDENUM FLUORIDE' _chemical_formula_structural 'MO F6' _chemical_formula_sum 'F6 Mo' _publ_section_title ; Structures of fluorides. IX. The orthorhombic form of molybdenum hexafluoride ; loop_ _publ_author_name 'Levy, J H' 'Taylor, J C' 'Wilson, P W' _journal_name_full 'Acta Crystallographica B (24,1968-38,1982)' _journal_coden_ASTM ACBCAR _journal_volume 31 _journal_year 1975 _journal_page_first 398 _journal_page_last 401 _cell_length_a 9.559(9) _cell_length_b 8.668(8) _cell_length_c 5.015(5) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 415.5 _cell_formula_units_Z 4 _exptl_crystal_density_meas 3.27 _symmetry_space_group_name_H-M 'P n m a' _symmetry_Int_Tables_number 62 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_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,-y,-z' '1/2-x,1/2+y,1/2+z' 'x,1/2-y,z' '1/2+x,y,1/2-z' loop_ _atom_type_symbol _atom_type_oxidation_number Mo6+ 6.000 F1- -1.000 loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens _atom_site_calc_flag Mo1 Mo6+ 4 c 0.1224(12) 0.25 0.1043(35) 1. 0 d F1 F1- 4 c 0.0155(14) 0.25 -0.1978(30) 1. 0 d F2 F1- 4 c 0.2559(17) 0.25 0.3744(71) 1. 0 d F3 F1- 8 d 0.0221(11) 0.0993(11) 0.2446(20) 1. 0 d F4 F1- 8 d 0.232(1) 0.1120(21) -0.0711(42) 1. 0 d _refine_ls_R_factor_all 0.11