data_global
_amcsd_formula_title 'K2 O5 S2'
loop_
_publ_author_name
'Zachariasen W'
_journal_name_full 'Physical Review'
_journal_volume 40 
_journal_year 1932
_journal_page_first 923
_journal_page_last 935
_publ_section_title
;
 The Crystal Lattice of Potassium Pyrosulphite,K2 S2 O5 and the
 Structure of the Pyrosulphite Group
 _cod_database_code 1010524
;
_database_code_amcsd 0017435
_chemical_formula_sum 'K2 S2 O5'
_cell_length_a 6.95
_cell_length_b 6.19
_cell_length_c 7.55
_cell_angle_alpha 90
_cell_angle_beta 102.68
_cell_angle_gamma 90
_cell_volume 316.883
_exptl_crystal_density_diffrn      2.330
_symmetry_space_group_name_H-M 'P 1 21/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
K1   0.22000   0.25000   0.95000
K2   0.65000   0.25000   0.67000
S1   0.70000   0.25000   0.22000
S2   0.01000   0.25000   0.32000
O1   0.07000   0.06000   0.24000
O2   0.63000   0.06000   0.31000
O3   0.67000   0.25000   0.03000