#------------------------------------------------------------------------------ #$Date: 2008-01-14 00:15:36 +0200 (Mon, 14 Jan 2008) $ #$Revision: 14 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/9007622.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_9007622 _chemical_name 'Brewsterite-Sr' loop_ _publ_author_name 'Schlenker J L' 'Pluth J J' 'Smith J V' _journal_name_full "Acta Crystallographica, Section B" _journal_volume 33 _journal_year 1977 _journal_page_first 2907 _journal_page_last 2910 _publ_section_title ; Refinement of the crystal structure of brewsterite, Ba0.5Sr1.5Al4Si12O32*10H2O ; _chemical_formula_sum 'Sr.71 Ba.24 K.01 Al2 Si6 O21 H10' _cell_length_a 6.793 _cell_length_b 17.573 _cell_length_c 7.759 _cell_angle_alpha 90 _cell_angle_beta 94.54 _cell_angle_gamma 90 _cell_volume 923.312 _symmetry_space_group_name_H-M 'P 1 21/m 1' loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' 'x,1/2-y,z' '-x,1/2+y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Sr 0.25010 0.25000 0.17800 0.71000 Ba 0.25010 0.25000 0.17800 0.24000 K 0.25010 0.25000 0.17800 0.01000 Al(A) 0.32180 0.08120 0.82240 0.27000 Si(A) 0.32180 0.08120 0.82240 0.73000 Al(B) 0.40540 0.05660 0.21080 0.37000 Si(B) 0.40540 0.05660 0.21080 0.63000 Al(C) 0.55530 0.15820 0.53360 0.36000 Si(C) 0.55530 0.15820 0.53360 0.64000 Si(D) 0.90870 0.05280 0.64100 1.00000 O1 0.35010 0.10590 0.02830 1.00000 O2 0.42180 0.12400 0.36070 1.00000 O3 0.78250 0.12110 0.54540 1.00000 O4 0.45000 0.14080 0.71500 1.00000 O5 0.08500 0.09200 0.76150 1.00000 O6 0.22280 0.99660 0.23880 1.00000 O7 0.38510 0.99210 0.79520 1.00000 O8 0.00000 0.00000 0.50000 1.00000 O9 0.57180 0.25000 0.49940 1.00000 Wat1 0.05980 0.25000 0.46990 1.00000 Wat2 0.92860 0.14740 0.15180 1.00000 Wat3 0.59960 0.25000 0.02410 1.00000 Wat4 0.06650 0.25000 0.86600 1.00000