#------------------------------------------------------------------------------ #$Date: 2009-05-13 21:45:18 +0300 (Wed, 13 May 2009) $ #$Revision: 720 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1008208.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_1008208 _chemical_name_systematic 'Bis(potassium iodate) telluric acid' _chemical_formula_structural '(K I O3)2 Te (O H)6' _chemical_formula_sum 'H6 I2 K2 O12 Te' _publ_section_title ; Crystal Chemistry of Some Addition Compounds of Alkali Iodates with Telluric Acid ; loop_ _publ_author_name 'Averbuch-Pouchot, M T' _journal_name_full 'Journal of Solid State Chemistry' _journal_coden_ASTM JSSCBI _journal_volume 49 _journal_year 1983 _journal_page_first 368 _journal_page_last 378 _cell_length_a 6.482(5) _cell_length_b 6.482(5) _cell_length_c 25.664(8) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 933.8 _cell_formula_units_Z 3 _symmetry_space_group_name_H-M 'R -3 H' _symmetry_Int_Tables_number 148 _symmetry_cell_setting trigonal loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-y,x-y,z' 'y-x,-x,z' '-x,-y,-z' 'y,y-x,-z' 'x-y,x,-z' '1/3+x,2/3+y,2/3+z' '2/3+x,1/3+y,1/3+z' '1/3-y,2/3+x-y,2/3+z' '2/3-y,1/3+x-y,1/3+z' '1/3-x+y,2/3-x,2/3+z' '2/3-x+y,1/3-x,1/3+z' '1/3-x,2/3-y,2/3-z' '2/3-x,1/3-y,1/3-z' '1/3+y,2/3-x+y,2/3-z' '2/3+y,1/3-x+y,1/3-z' '1/3+x-y,2/3+x,2/3-z' '2/3+x-y,1/3+x,1/3-z' loop_ _atom_type_symbol _atom_type_oxidation_number Te6+ 6.000 I5+ 5.000 K1+ 1.000 O2- -2.000 H1+ 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 Te1 Te6+ 3 a 0. 0. 0. 1. 0 d I1 I5+ 6 c 0. 0. 0.17835(2) 1. 0 d K1 K1+ 6 c 0. 0. 0.4047(1) 1. 0 d O1 O2- 18 f 0.2550(6) 0.0219(6) 0.0413(2) 1. 0 d O2 O2- 18 f 0.2444(5) -0.0048(5) 0.2110(1) 1. 0 d H1 H1+ 3 a -1. -1. -1. 6. 0 dum _refine_ls_R_factor_all 0.035