#------------------------------------------------------------------------------ #$Date: 2010-01-30 15:59:17 +0200 (Sat, 30 Jan 2010) $ #$Revision: 966 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1011135.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_1011135 _chemical_name_systematic 'Ammonium tetrafluoroborate' _chemical_name_mineral 'Barberiite' _chemical_compound_source 'synthetic from solution' _chemical_formula_structural '(N H4) (B F4)' _chemical_formula_sum 'B F4 H4 N' _[local]_cod_chemical_formula_sum_orig 'H4 B F4 N' _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 9.06 _cell_length_b 5.64 _cell_length_c 7.23 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 369.4 _cell_formula_units_Z 4 _exptl_crystal_density_meas 1.89 _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 N3- -3.000 B3+ 3.000 F1- -1.000 H1+ 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 N1 N3- 4 c 0.308 0.25 0.328 1. 4 d B1 B3+ 4 c 0.947 0.25 0.697 1. 0 d F1 F1- 4 c 0.086 0.25 0.603 1. 0 d F2 F1- 4 c 0.83 0.25 0.563 1. 0 d F3 F1- 8 d 0.936 0.043 0.811 1. 0 d H1 H1+ 8 d -1. -1. -1. 2. 0 dum _cod_database_code 1011135