data_1008184
_chemical_name_systematic
;
Tetrapotassium di-$-mue-oxo-bis(hydrogensulfatodioxoiodate)
;
_chemical_formula_structural       'K4 H2 (S2 I2 O14)'
_chemical_formula_sum              'H2 I2 K4 O14 S2'
_publ_section_title
;
Structure cristalline d'un Dihydrogeno-sulphato-iodate de Potassium
;
_publ_author_name                  'Averbuch-Pouchot, M T'
_journal_name_full                 'Journal of Solid State Chemistry'
_journal_coden_ASTM                JSSCBI
_journal_volume                    41
_journal_year                      1982
_journal_page_first                262
_journal_page_last                 265
_cell_length_a                     13.84(1)
_cell_length_b                     7.173(5)
_cell_length_c                     7.443(5)
_cell_angle_alpha                  90
_cell_angle_beta                   93.16(1)
_cell_angle_gamma                  90
_cell_volume                       737.8
_cell_formula_units_Z              2
_symmetry_space_group_name_H-M     'P 1 21/n 1'
_symmetry_Int_Tables_number        14
_symmetry_cell_setting             monoclinic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '1/2+x,1/2-y,1/2+z'
  '-x,-y,-z'
  '1/2-x,1/2+y,1/2-z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  I5+    5.000
  K1+    1.000
  S6+    6.000
  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
  I1    I5+    4 e 0.04771(3) 0.13948(5) 0.19249(5) 1.  0 d
  K1    K1+    4 e 0.0810(1) 0.3851(2) 0.6680(2) 1.  0 d
  K2    K1+    4 e 0.3211(1) 0.1586(2) 0.4007(2) 1.  0 d
  S1    S6+    4 e 0.3419(1) 0.3500(2) 0.9242(2) 1.  0 d
  O1    O2-    4 e 0.1747(3) 0.0610(8) 0.1349(7) 1.  0 d
  O2    O2-    4 e 0.0796(4) 0.3650(7) 0.2823(7) 1.  0 d
  O3    O2-    4 e 0.5074(4) 0.2978(7) 0.4666(6) 1.  0 d
  O4    O2-    4 e 0.3756(4) 0.2870(8) 0.7462(7) 1.  0 d
  O5    O2-    4 e 0.3892(4) 0.2366(8) 0.0673(7) 1.  0 d
  O6    O2-    4 e 0.2356(4) 0.3252(7) 0.9202(7) 1.  0 d
  O7    O2-    4 e 0.1329(4) 0.0483(7) 0.5489(8) 1.  1 d
  H1    H1+    4 e -1. -1. -1. 1.  0 dum
_refine_ls_R_factor_all            0.03