#------------------------------------------------------------------------------ #$Date: 2010-01-30 15:59:17 +0200 (Sat, 30 Jan 2010) $ #$Revision: 966 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/9002890.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_9002890 loop_ _publ_author_name 'Fridriksson T' 'Bish D L' 'Bird D K' _publ_section_title ; Hydrogen-bonded water in laumontite I: X-ray powder diffraction study of water site occupancy and structural changes in laumontite during room-temperature isothermal hydration/dehydration Sample: P = 16.4 mbar PH2O ; _journal_name_full 'American Mineralogist' _journal_page_first 277 _journal_page_last 287 _journal_volume 88 _journal_year 2003 _chemical_formula_sum 'Al2 Ca H14 O15.522 Si4' _[local]_cod_chemical_formula_sum_orig 'Si4 Al2 O15.522 Ca H14' _chemical_name_mineral Laumontite _symmetry_space_group_name_H-M 'C 1 2/m 1' _cell_angle_alpha 90 _cell_angle_beta 112.0399 _cell_angle_gamma 90 _cell_length_a 14.74716 _cell_length_b 13.06601 _cell_length_c 7.55735 _cell_volume 1349.785 loop_ _symmetry_equiv_pos_as_xyz x,y,z 1/2+x,1/2+y,z x,-y,z 1/2+x,1/2-y,z -x,y,-z 1/2-x,1/2+y,-z -x,-y,-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_U_iso_or_equiv Si1 0.23817 0.38214 0.15752 1.00000 0.00470 Si2 0.08328 0.38332 0.32681 1.00000 0.00380 Al 0.12850 0.31001 0.73388 1.00000 0.00460 O1 0.26062 0.50000 0.22720 1.00000 0.00770 O2 0.20980 0.37876 0.92910 1.00000 0.00770 O3 0.14738 0.38453 0.55440 1.00000 0.00770 O4 0.14923 0.34054 0.21330 1.00000 0.00770 O5 0.33694 0.31729 0.27000 1.00000 0.00770 O6 0.05190 0.50000 0.26210 1.00000 0.00770 O7 0.00863 0.30915 0.72010 1.00000 0.00770 Ca 0.27194 0.50000 0.75867 1.00000 0.01260 Wat1 0.02500 0.17000 0.00000 0.01100 0.04690 Wat2 0.41577 0.46147 0.05730 0.50000 0.04690 Wat5 0.50000 0.43509 0.50000 0.50000 0.05570 Wat8 0.11622 0.11218 0.30000 1.00000 ? loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Wat8 0.03390 0.09100 0.22600 0.00800 0.04700 -0.09100 _cod_database_code 9002890