data_1010094 _chemical_name_systematic 'Rubidium tetrafluoroborate' _chemical_formula_structural 'Rb B F4' _chemical_formula_sum 'B F4 Rb' _publ_section_title ; The Crystal Structures of Rubidium and Ammonium Fluoborates ; loop_ _publ_author_name 'Hoard, J L' 'Blair, V' _journal_name_full 'Journal of the American Chemical Society' _journal_coden_ASTM JACSAT _journal_volume 57 _journal_year 1935 _journal_page_first 1985 _journal_page_last 1988 _cell_length_a 9.07 _cell_length_b 5.6 _cell_length_c 7.23 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 367.2 _cell_formula_units_Z 4 _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 Rb1+ 1.000 B3+ 3.000 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 Rb1 Rb1+ 4 c 0.315 0.25 0.335 1. 0 d B1 B3+ 4 c 0.932 0.25 0.696 1. 0 d F1 F1- 4 c 0.069 0.25 0.597 1. 0 d F2 F1- 4 c 0.813 0.25 0.567 1. 0 d F3 F1- 8 d 0.923 0.043 0.81 1. 0 d