#------------------------------------------------------------------------------ #$Date: 2009-11-18 16:56:34 +0200 (Wed, 18 Nov 2009) $ #$Revision: 858 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1010257.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_1010257 _chemical_name_systematic 'Magnesium bromide hexahydrate' _chemical_formula_structural 'Mg Br2 (H2 O)6' _chemical_formula_sum 'Br2 H12 Mg O6' _[local]_cod_chemical_formula_sum_orig 'H12 Br2 Mg O6' _publ_section_title ; Die Struktur von Magnesiumchlorid- und Magnesiumbromidhexahydrat. ; loop_ _publ_author_name 'Andress, K R' 'Gundermann, J' _journal_name_full ; Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (-144,1977) ; _journal_coden_ASTM ZEKGAX _journal_volume 87 _journal_year 1934 _journal_page_first 345 _journal_page_last 369 _cell_length_a 10.25(3) _cell_length_b 7.40(3) _cell_length_c 6.30(3) _cell_angle_alpha 90 _cell_angle_beta 93.50(33) _cell_angle_gamma 90 _cell_volume 477.0 _cell_formula_units_Z 2 _symmetry_space_group_name_H-M 'C 1 2/m 1' _symmetry_Int_Tables_number 12 _symmetry_cell_setting monoclinic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' 'x,-y,z' '-x,-y,-z' '-x,y,-z' '1/2+x,1/2+y,z' '1/2+x,1/2-y,z' '1/2-x,1/2-y,-z' '1/2-x,1/2+y,-z' loop_ _atom_type_symbol _atom_type_oxidation_number Mg2+ 2.000 Br1- -1.000 O2- -2.000 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 Mg1 Mg2+ 2 a 0. 0. 0. 1. 0 d Br1 Br1- 4 i 0.320(3) 0. 0.615(5) 1. 0 d O1 O2- 4 i 0.200(5) 0. 0.115(3) 1. 2 d O2 O2- 8 j 0.96(3) 0.205(5) 0.230(3) 1. 2 d H1 H1+ 4 i -1. -1. -1. 6. 0 dum