#------------------------------------------------------------------------------ #$Date: 2017-10-18 16:04:22 +0300 (Wed, 18 Oct 2017) $ #$Revision: 202122 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/01/10/1011093.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_1011093 loop_ _publ_author_name 'Eitel, W' 'Skaliks, W' _publ_section_title ; Ueber einige Doppelcarbonate der Alkalien und Erdalkalien ; _journal_coden_ASTM ZAACAB _journal_name_full ; Zeitschrift fuer Anorganische und Allgemeine Chemie ; _journal_page_first 263 _journal_page_last 286 _journal_paper_doi 10.1002/zaac.19291830119 _journal_volume 183 _journal_year 1929 _chemical_compound_source synthetic _chemical_formula_structural 'Na2 Mg (C O3)2' _chemical_formula_sum 'C2 Mg Na2 O6' _chemical_name_mineral Eitelite _chemical_name_systematic 'Disodium magnesium carbonate' _space_group_IT_number 147 _symmetry_cell_setting trigonal _symmetry_Int_Tables_number 147 _symmetry_space_group_name_Hall '-P 3' _symmetry_space_group_name_H-M 'P -3' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_formula_units_Z 6 _cell_length_a 4.95 _cell_length_b 4.95 _cell_length_c 16.5 _cell_volume 350.1 _cod_database_code 1011093 _cod_depositor_comments ; Correcting the _chemical_formula_sum data item value by changing it from 'Mg Na2 O6' to 'C2 Mg Na2 O6'. Antanas Vaitkus, 2017-10-18 ; loop_ _symmetry_equiv_pos_as_xyz x,y,z -y,x-y,z y-x,-x,z -x,-y,-z y,y-x,-z x-y,x,-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+ 2 c 0. 0. 0.25 1. 0 d Na2 Na1+ 2 c 0. 0. 0.9167 1. 0 d Na3 Na1+ 2 d 0.3333 0.6667 0.25 1. 0 d Na4 Na1+ 2 d 0.6667 0.3333 0.9167 1. 0 d Na5 Na1+ 2 d 0.6667 0.3333 0.25 1. 0 d Na6 Na1+ 2 d 0.3333 0.6667 0.9167 1. 0 d Mg1 Mg2+ 2 c 0. 0. 0.5833 1. 0 d Mg2 Mg2+ 2 d 0.3333 0.6667 0.5833 1. 0 d Mg3 Mg2+ 2 d 0.6667 0.3333 0.5833 1. 0 d C1 C4+ 1 a 0. 0. 0. 1. 0 d C2 C4+ 2 c 0. 0. 0.1667 1. 0 d C3 C4+ 2 c 0. 0. 0.3333 1. 0 d C4 C4+ 1 b 0. 0. 0.5 1. 0 d C5 C4+ 2 c 0. 0. 0.6667 1. 0 d C6 C4+ 2 c 0. 0. 0.8333 1. 0 d O1 O2- 6 g 0.3333 0.3333 0. 1. 0 d O2 O2- 6 g 0.3333 0.3333 0.1667 1. 0 d O3 O2- 6 g 0.3333 0.3333 0.3333 1. 0 d O4 O2- 6 g 0.3333 0.3333 0.5 1. 0 d O5 O2- 6 g 0.3333 0.3333 0.6667 1. 0 d O6 O2- 6 g 0.3333 0.3333 0.8333 1. 0 d C7 C4+ 2 ? -1. -1. -1. 1. 0 dum loop_ _atom_type_symbol _atom_type_oxidation_number Na1+ 1.000 Mg2+ 2.000 C4+ 4.000 O2- -2.000