#------------------------------------------------------------------------------ #$Date: 2012-02-28 14:14:52 +0200 (Tue, 28 Feb 2012) $ #$Revision: 35911 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/01/1000106.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_1000106 _chemical_name_systematic 'Caesium tetrafluoroaluminate - $-beta' _chemical_formula_structural 'Cs (Al F4)' _chemical_formula_sum 'Al Cs F4' _publ_section_title ; Polymorphism of CsAlF~4~.Synthesis and structure of two new crystalline forms ; loop_ _publ_author_name 'Bentrup, U' 'Le Bail, A' 'Duroy, H' 'Fourquet, J L' _journal_name_full ; European Journal of Solid State Inorganic Chemistry ; _journal_coden_ASTM EJSCE5 _journal_volume 29 _journal_year 1992 _journal_page_first 371 _journal_page_last 381 _cell_length_a 11.8101(4) _cell_length_b 11.8101(4) _cell_length_c 13.3741(6) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1865.4 _cell_formula_units_Z 20 _symmetry_space_group_name_H-M 'I -4 c 2' _symmetry_Int_Tables_number 120 _symmetry_cell_setting tetragonal loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,-y,z' '-x,y,1/2+z' 'x,-y,1/2+z' '-y,x,-z' 'y,-x,-z' '-y,-x,1/2-z' 'y,x,1/2-z' '1/2+x,1/2+y,1/2+z' '1/2-x,1/2-y,1/2+z' '1/2-x,1/2+y,z' '1/2+x,1/2-y,z' '1/2-y,1/2+x,1/2-z' '1/2+y,1/2-x,1/2-z' '1/2-y,1/2-x,-z' '1/2+y,1/2+x,-z' loop_ _atom_type_symbol _atom_type_oxidation_number Cs1+ 1.000 Al3+ 3.000 F1- -1.000 loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens _atom_site_calc_flag Cs1 Cs1+ 4 a 0. 0. 0.25 1. 0 d Cs2 Cs1+ 16 i 0.3391(3) 0.8414(3) 0.6850(1) 1. 0 d Al1 Al3+ 4 d 0.5 0. 0. 1. 0 d Al2 Al3+ 16 i 0.7927(3) 0.0764(3) 0.006(1) 1. 0 d F1 F1- 16 i 0.3445(5) -0.0004(4) 0.011(1) 1. 0 d F2 F1- 16 i 0.1398(5) 0.0717(5) 0.0115(9) 1. 0 d F3 F1- 16 i 0.072(1) 0.219(1) 0.131(1) 1. 0 d F4 F1- 16 i 0.920(1) 0.801(1) 0.872(1) 1. 0 d F5 F1- 8 h 0.2156(4) 0.7156(4) 0.5 1. 0 d F6 F1- 8 g 0. 0.5 0.1338(6) 1. 0 d _refine_ls_R_factor_all 0.038 _cod_database_code 1000106