#------------------------------------------------------------------------------ #$Date: 2020-04-28 23:43:51 +0300 (Tue, 28 Apr 2020) $ #$Revision: 251246 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/55/79/1557941.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_1557941 loop_ _publ_author_name 'Wadoski-Romeijn, E.' 'Armbruster, T.' _publ_section_title ; Topotactic transformation and dehydration of the zeolite gismondine to a novel Ca feldspar structure ; _journal_name_full 'American Mineralogist' _journal_page_first 1988 _journal_page_last 1997 _journal_paper_doi 10.2138/am.2013.4495 _journal_volume 98 _journal_year 2013 _chemical_formula_sum 'Al8 Ca4 H36 O50 Si8' _chemical_name_common Ca4(Al8Si8O32)18H2O _chemical_name_mineral 'gismondine C2/c at 225 C' _space_group_IT_number 15 _space_group_name_Hall '-I 2ya' _space_group_name_H-M_alt 'I 1 2/a 1' _cell_angle_alpha 90 _cell_angle_beta 89.04(1) _cell_angle_gamma 90 _cell_formula_units_Z 1 _cell_length_a 9.434(4) _cell_length_b 9.044(2) _cell_length_c 9.695(2) _cell_volume 827.1(4) _diffrn_ambient_pressure 100 _diffrn_ambient_temperature 498 _cod_data_source_file gismondine-C2c-225C.cif _cod_data_source_block gismondine-225C _cod_original_sg_symbol_H-M 'I 2/a' _cod_original_formula_sum 'Ca4 Al8 Si8 O50 H36' _cod_database_code 1557941 loop_ _space_group_symop_id _space_group_symop_operation_xyz 1 x,y,z 2 -x,-y,-z 3 -x+1/2,y,-z 4 x+1/2,-y,z 5 x+1/2,y+1/2,z+1/2 6 -x+1/2,-y+1/2,-z+1/2 7 -x,y+1/2,-z+1/2 8 x,-y+1/2,z+1/2 loop_ _atom_site_label _atom_site_occupancy _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_adp_type _atom_site_U_iso_or_equiv _atom_site_type_symbol Si 1.0 0.05556(6) 0.32064(6) 0.38602(5) Uiso 0.01788(12) Si Al 1.0 0.13201(6) 0.07978(7) 0.18112(6) Uiso 0.01776(13) Al Ca1 0.389(3) -0.17893(13) 0.20622(15) 0.18672(19) Uiso 0.0383(5) Ca Ca2 0.084(3) 0.0640(8) 0.0484(6) 0.5680(6) Uiso 0.0318(18) Ca O1 1.0 -0.09122(16) 0.39158(17) 0.32814(17) Uiso 0.0246(3) O O2 1.0 0.0500(2) 0.3228(2) 0.55227(16) Uiso 0.0330(4) O O3 1.0 0.0627(2) 0.15111(18) 0.33389(17) Uiso 0.0297(3) O O4 1.0 0.18636(19) 0.4183(2) 0.3271(2) Uiso 0.0379(4) O OW1 1.0 0.25 -0.1164(8) 0.5 Uiso 0.124(2) O