data_global
_amcsd_formula_title 'F2 I K O2'
loop_
_publ_author_name
'Helmholz L'
'Rogers M'
_journal_name_full 'Journal of the American Chemical Society'
_journal_volume 62 
_journal_year 1940
_journal_page_first 1537
_journal_page_last 1542
_publ_section_title
;
 The Crystal Structure of Potassium Fluoroiodate, K I O2 F2
 _cod_database_code 1010203
;
_database_code_amcsd 0017139
_chemical_formula_sum 'I K F2 O2'
_cell_length_a 8.38
_cell_length_b 5.97
_cell_length_c 8.41
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 420.741
_exptl_crystal_density_diffrn      3.726
_symmetry_space_group_name_H-M 'P c a 21'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,-y,z'
  '1/2-x,y,1/2+z'
  '-x,-y,1/2+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
I1   0.00000   0.06700   0.00000
K1   0.21500   0.46500   0.29000
F1  -0.08000   0.35500   0.09000
F2   0.08000  -0.22000  -0.09000
O1   0.21500   0.17500   0.03500
O2  -0.02000   0.19000   0.21000