#------------------------------------------------------------------------------ #$Date: 2018-06-09 03:26:37 +0100 (Sat, 09 Jun 2018) $ #$Revision: 208225 $ #$URL: svn://www.crystallography.net/cod/cif/2/10/15/2101595.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/. The original data for this entry # were provided by IUCr Journals, http://journals.iucr.org/. # # 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_2101595 loop_ _publ_author_name 'Abrahams, S. C.' _publ_section_title ; New ferroelectric inorganic materials predicted in point group 4mm ; _journal_issue 5 _journal_name_full 'Acta Crystallographica Section B' _journal_page_first 790 _journal_page_last 805 _journal_paper_doi 10.1107/S0108768196004594 _journal_volume 52 _journal_year 1996 _chemical_formula_sum 'Al F5 H4 Hg2 O4' _space_group_crystal_system tetragonal _space_group_IT_number 108 _space_group_name_Hall 'I 4 -2c' _space_group_name_H-M_alt 'I 4 c m' _cell_angle_alpha 90.0 _cell_angle_beta 90.0 _cell_angle_gamma 90.0 _cell_length_a 9.353(5) _cell_length_b 9.353(5) _cell_length_c 7.241(6) _cell_volume 633.4(7) _diffrn_radiation_type MoK\a _diffrn_radiation_wavelength 0.71069 _cod_data_source_file an0527.cif _cod_data_source_block AN0527u _cod_depositor_comments ; Updating space group information. Antanas Vaitkus, 2018-06-09 ; _cod_original_sg_symbol_Hall 'I 4 -2ab' _cod_original_formula_sum 'H4 Al1 F5 Hg2 O4' _cod_database_code 2101595 loop_ _space_group_symop_id _space_group_symop_operation_xyz 1 x,y,z 2 -y,x,z 3 -x,-y,z 4 y,-x,z 5 -x,y,z+1/2 6 -y,-x,z+1/2 7 x,-y,z+1/2 8 y,x,z+1/2 9 x+1/2,y+1/2,z+1/2 10 -y+1/2,x+1/2,z+1/2 11 -x+1/2,-y+1/2,z+1/2 12 y+1/2,-x+1/2,z+1/2 13 -x+1/2,y+1/2,z 14 -y+1/2,-x+1/2,z 15 x+1/2,-y+1/2,z 16 y+1/2,x+1/2,z loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Hg .90510(10) .4051 -.0085 Al .0 .0 .2589(18) F1 .0 .0 -.003(6) F2 .8100(7) -.0273(7) .2515(16) O1 .7442(10) .2442 -.0444(18)