#------------------------------------------------------------------------------ #$Date: 2024-12-12 17:19:11 +0200 (Thu, 12 Dec 2024) $ #$Revision: 296856 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/01/04/1010487.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_1010487 loop_ _publ_author_name 'Rinne, F' 'Hentschel, H' 'Leonhardt, J' _publ_section_title ; Ueber feinbauliche Versuche zur Konstitution des Natriumhydrofluorids unter Verwendung der Atombereiche und ueber die roentgenographische Erforschung dieser Verbindung. ; _journal_coden_ASTM ZEKGAX _journal_name_full ; Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (-144,1977) ; _journal_page_first 629 _journal_page_last 640 _journal_volume 58 _journal_year 1923 _chemical_formula_structural 'Na H F2' _chemical_formula_sum 'F2 H Na' _chemical_name_systematic 'Sodium hydrogen difluoride' _space_group_IT_number 166 _symmetry_cell_setting trigonal _symmetry_space_group_name_Hall '-P 3* 2' _symmetry_space_group_name_H-M 'R -3 m :R' _cell_angle_alpha 39.73(5) _cell_angle_beta 39.73(5) _cell_angle_gamma 39.73(5) _cell_formula_units_Z 1 _cell_length_a 5.17(5) _cell_length_b 5.17(5) _cell_length_c 5.17(5) _cell_volume 50.8 _exptl_crystal_density_meas 2.09 _cod_original_sg_symbol_H-M 'R -3 m R' _cod_original_formula_sum 'H F2 Na' _cod_database_code 1010487 loop_ _symmetry_equiv_pos_as_xyz x,y,z y,x,z y,z,x x,z,y z,x,y z,y,x -x,-y,-z -y,-x,-z -y,-z,-x -x,-z,-y -z,-x,-y -z,-y,-x 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 Na1 Na1+ 1 a 0. 0. 0. 1. 0 d F1 F1- 2 c 0.4167 0.4167 0.4167 1. 0 d H1 H1+ 1 b 0.5 0.5 0.5 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Na1+ 1.000 F1- -1.000 H1+ 1.000 loop_ _cod_changelog_entry_id _cod_changelog_entry_author _cod_changelog_entry_date _cod_changelog_entry_text 1 'Vaitkus, Antanas' 2024-12-12T17:16:25+02:00 ; Corrected the '_atom_site_attached_hydrogens' data item values by setting them all to '0' after consulting the original publication. Prior to this change the 'F1' atom site was incorrectly marked as having 1 attached hydrogen atom. ;