#------------------------------------------------------------------------------ #$Date: 2017-01-15 15:39:14 +0200 (Sun, 15 Jan 2017) $ #$Revision: 190539 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/00/82/9008299.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/. The original data for this entry # were provided the American Mineralogist Crystal Structure Database, # http://rruff.geo.arizona.edu/AMS/amcsd.php # # The file may be used within the scientific community so long as # proper attribution is given to the journal article from which the # data were obtained. # data_9008299 loop_ _publ_author_name 'Abdeen, A. M.' 'Will, G.' 'Schafer, W.' 'Kirfel, A.' 'Bargouth, M. O.' 'Recker, K.' 'Weiss, A.' _publ_section_title ; X-ray and neutron diffraction study of alums: II. The crystal structure of methylammonium aluminium alum III. The crystal structure of ammonium aluminium alum Note: Neutron data ; _journal_issue 3-4 _journal_name_full 'Zeitschrift fur Kristallographie' _journal_page_first 147 _journal_page_last 166 _journal_paper_doi 10.1524/zkri.1981.157.3-4.147 _journal_volume 157 _journal_year 1981 _chemical_formula_sum 'Al H28 N O20 S2' _chemical_name_mineral Tschermigite _space_group_IT_number 205 _symmetry_space_group_name_Hall '-P 2ac 2ab 3' _symmetry_space_group_name_H-M 'P a -3' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 12.248 _cell_length_b 12.248 _cell_length_c 12.248 _cell_volume 1837.365 _exptl_crystal_density_diffrn 1.639 _cod_depositor_comments ; Adding the _cell_formula_units_Z data item. Antanas Vaitkus, 2017-01-15 Adding the _atom_site_type_symbol data item. Antanas Vaitkus, 2017-01-15 ; _cod_original_sg_symbol_H-M 'P a 3' _cod_original_formula_sum 'N H28 Al S2 O20' _cod_database_code 9008299 loop_ _symmetry_equiv_pos_as_xyz x,y,z 1/2+z,x,1/2-y z,1/2-x,1/2+y 1/2-z,1/2+x,y -z,-x,-y 1/2+y,1/2-z,-x 1/2-y,-z,1/2+x -y,1/2+z,1/2-x y,z,x x,1/2-y,1/2+z 1/2-x,1/2+y,z 1/2+x,y,1/2-z -x,-y,-z 1/2-z,-x,1/2+y -z,1/2+x,1/2-y 1/2+z,1/2-x,-y z,x,y 1/2-y,1/2+z,x 1/2+y,z,1/2-x y,1/2-z,1/2+x -y,-z,-x -x,1/2+y,1/2-z 1/2+x,1/2-y,-z 1/2-x,-y,1/2+z 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 N 0.02052 0.02052 0.02052 -0.00988 -0.00988 -0.00988 Hn1 0.13604 0.13604 0.13604 0.07220 0.07220 0.07220 Hn2 0.08816 0.19075 0.02812 -0.00760 0.02128 -0.04104 Al 0.02432 0.02432 0.02432 0.00000 0.00000 0.00000 S 0.05092 0.05092 0.05092 0.00912 0.00912 0.00912 O1A 0.07220 0.07220 0.07220 0.00076 0.00076 0.00076 O1B 0.12236 0.12236 0.12236 -0.05852 -0.05852 -0.05852 O2A 0.03420 0.06308 0.03952 0.02204 0.01520 0.02736 O2B 0.04408 0.27891 0.10792 0.05472 -0.01596 0.06840 Ow1 0.04332 0.01672 0.03040 -0.00760 0.00380 -0.00836 Ow2 0.04788 0.02584 0.04712 -0.00380 0.01444 -0.00532 H1 0.04256 0.06612 0.03192 -0.00076 -0.00076 0.00456 H2 0.06460 0.03192 0.02812 0.00532 -0.02660 0.00456 H3 0.06840 0.06764 0.04864 0.00912 -0.01596 -0.00380 H4 0.06992 0.06460 0.10032 0.00304 -0.04484 -0.03040 loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv N N 0.50700 0.50700 0.50700 0.50000 0.02052 Hn1 H 0.43890 0.43890 0.43890 0.50000 0.13590 Hn2 H 0.43750 0.49690 0.53140 0.50000 0.10221 Al Al 0.00000 0.00000 0.00000 1.00000 0.02432 S S 0.31110 0.31110 0.31110 1.00000 0.05091 O1A O 0.23850 0.23850 0.23850 0.83100 0.07206 O1B O 0.38310 0.38310 0.38310 0.16900 0.12222 O2A O 0.31370 0.26400 0.41990 0.83100 0.04547 O2B O 0.21050 0.35560 0.28230 0.16900 0.14350 Ow1 O 0.01770 0.98290 0.15300 1.00000 0.03014 Ow2 O 0.04420 0.13670 0.29900 1.00000 0.04028 H1 H 0.02750 0.04320 0.20590 1.00000 0.04686 H2 H 0.04290 0.91710 0.18740 1.00000 0.04154 H3 H 0.99580 0.19650 0.28340 1.00000 0.06155 H4 H 0.11820 0.16760 0.29370 1.00000 0.07840