#------------------------------------------------------------------------------ #$Date: 2008-02-24 21:12:15 +0200 (Sun, 24 Feb 2008) $ #$Revision: 168 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/9005461.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_9005461 _chemical_name 'Barrerite' loop_ _publ_author_name 'Meneghinello E' 'Alberti A' 'Cruciani G' 'Sacerdoti M' 'McIntyre G' 'Ciambelli P' 'Rapascciuolo M T' _journal_name_full "European Journal of Mineralogy" _journal_volume 12 _journal_year 2000 _journal_page_first 1123 _journal_page_last 1129 _publ_section_title ; Single crystal neutron diffraction study of the natural zeolite barrerite in its ND4-exchanged form ; _chemical_formula_sum; ; (Si7.123 Al1.876) O22.52 Na.106 K.03 Mg.047 Ca.162 Ba.002 ; _cell_length_a 13.601 _cell_length_b 18.232 _cell_length_c 17.810 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 4416.407 _symmetry_space_group_name_H-M 'F m m m' loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' 'x,1/2+y,1/2+z' '1/2+x,y,1/2+z' '1/2+x,1/2+y,z' 'x,-y,z' 'x,1/2-y,1/2+z' '1/2+x,-y,1/2+z' '1/2+x,1/2-y,z' '-x,y,-z' '-x,1/2+y,1/2-z' '1/2-x,y,1/2-z' '1/2-x,1/2+y,-z' '-x,y,z' '-x,1/2+y,1/2+z' '1/2-x,y,1/2+z' '1/2-x,1/2+y,z' 'x,-y,-z' 'x,1/2-y,1/2-z' '1/2+x,-y,1/2-z' '1/2+x,1/2-y,-z' 'x,y,-z' 'x,1/2+y,1/2-z' '1/2+x,y,1/2-z' '1/2+x,1/2+y,-z' '-x,-y,z' '-x,1/2-y,1/2+z' '1/2-x,-y,1/2+z' '1/2-x,1/2-y,z' '-x,-y,-z' '-x,1/2-y,1/2-z' '1/2-x,-y,1/2-z' '1/2-x,1/2-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_Uiso_or_equiv SiT1 0.38560 0.30770 0.37610 0.79150 ? AlT1 0.38560 0.30770 0.37610 0.20850 ? SiT3 0.30100 0.41070 0.50000 0.79150 ? AlT3 0.30100 0.41070 0.50000 0.20850 ? SiT4 0.38820 0.18400 0.50000 0.79150 ? AlT4 0.38820 0.18400 0.50000 0.20850 ? SiT5 0.25000 0.25000 0.25000 0.79150 ? AlT5 0.25000 0.25000 0.25000 0.20850 ? O1 0.31760 0.30420 0.30130 1.00000 ? O3 0.37200 0.23180 0.42560 1.00000 ? O4 0.35630 0.37990 0.42470 1.00000 ? O7 0.50000 0.31620 0.34890 1.00000 ? O8 0.31530 0.11380 0.50000 1.00000 ? O9 0.30930 0.50000 0.50000 1.00000 ? O10 0.50000 0.15060 0.50000 1.00000 ? Wat1 0.46100 0.12200 0.30600 0.21000 0.06200 Wat2 0.50000 0.13000 0.30700 0.25000 0.03600 Wat3 0.47400 0.00000 0.43100 0.34000 0.14000 Wat4 0.40500 0.00000 0.38600 0.26000 0.11000 Wat6 0.38900 0.00000 0.31900 0.19000 0.07000 Wat8 0.50000 0.50000 0.37200 1.00000 ? Wat11 0.39800 0.09400 0.31600 0.15000 0.08000 NaC1 0.50000 0.00000 0.29100 0.10625 0.03000 KC1 0.50000 0.00000 0.29100 0.03000 0.03000 MgC1 0.50000 0.00000 0.29100 0.04750 0.03000 CaC1 0.50000 0.00000 0.29100 0.16250 0.03000 BaC1 0.50000 0.00000 0.29100 0.00250 0.03000 NH4C2 0.29100 0.05800 0.29200 0.00875 0.13000 ND42 0.50000 0.09000 0.27300 0.12000 0.19000 ND43 0.33700 0.02800 0.23400 0.11000 0.12000 ND44 0.33800 0.06800 0.33100 0.15000 0.09000