#------------------------------------------------------------------------------ #$Date: 2015-01-27 21:58:39 +0200 (Tue, 27 Jan 2015) $ #$Revision: 130149 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/01/10/1011016.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_1011016 loop_ _publ_author_name 'Zachariasen, W H' _publ_section_title ; The Crystal Lattice of Sodium Bicarbonate, Na H C O3 ; _journal_coden_ASTM JCPSA6 _journal_name_full 'Journal of Chemical Physics' _journal_page_first 634 _journal_page_last 639 _journal_paper_doi 10.1063/1.1749342 _journal_volume 1 _journal_year 1933 _chemical_compound_source 'synthetic by evaporation' _chemical_formula_structural 'Na (H C O3)' _chemical_formula_sum 'H Na O3' _chemical_name_mineral Nahcolite _chemical_name_systematic 'Sodium hydrogen carbonate' _space_group_IT_number 14 _symmetry_cell_setting monoclinic _symmetry_Int_Tables_number 14 _symmetry_space_group_name_Hall '-P 2yn' _symmetry_space_group_name_H-M 'P 1 21/n 1' _cell_angle_alpha 90 _cell_angle_beta 93.32 _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 7.51(4) _cell_length_b 9.70(4) _cell_length_c 3.53(3) _cell_volume 256.7 _exptl_crystal_density_meas 2.21(1) _cod_database_code 1011016 loop_ _symmetry_equiv_pos_as_xyz x,y,z 1/2+x,1/2-y,1/2+z -x,-y,-z 1/2-x,1/2+y,1/2-z 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+ 4 e 0.278 0. 0.708 1. 0 d C1 C4+ 4 e 0.069 0.236 0.314 1. 0 d O1 O2- 4 e 0.069 0.367 0.314 1. 0 d O2 O2- 4 e 0.2 0.169 0.183 1. 0 d O3 O2- 4 e 0.939 0.169 0.444 1. 0 d H1 H1+ 4 e 0.319 0.25 0.064 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Na1+ 1.000 C4+ 4.000 O2- -2.000 H1+ 1.000