data_1010306
_publ_section_title
;
Die Atomanordnung in den tetragonalen Kristallen von K₂ J₂ O₈,
Kaliummetaperjodat.
;
_journal_coden_ASTM              ZEPYAA
_journal_name_full               'Zeitschrift fuer Physik'
_journal_page_first              308
_journal_page_last               321
_journal_paper_doi               10.1007/BF01322016
_journal_volume                  39
_journal_year                    1926
_chemical_formula_structural     'K I O4'
_chemical_formula_sum            'I K O4'
_chemical_name_systematic        'Potassium iodate(VII)'
_space_group_IT_number           88
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'I 4bw -1bw'
_symmetry_space_group_name_H-M   'I 41/a :1'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.13
_cell_length_b                   8.13
_cell_length_c                   12.63
_cell_volume                     834.8
_[local]_cod_cif_authors_sg_H-M  'I 41/a S'
_cod_database_code               1010306
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y,z
x,1/2+y,1/4-z
-x,1/2-y,1/4-z
-y,x,-z
y,-x,-z
-y,1/2+x,1/4+z
y,1/2-x,1/4+z
1/2+x,1/2+y,1/2+z
1/2-x,1/2-y,1/2+z
1/2+x,y,3/4-z
1/2-x,-y,3/4-z
1/2-y,1/2+x,1/2-z
1/2+y,1/2-x,1/2-z
1/2-y,x,3/4+z
1/2+y,-x,3/4+z
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
K1 K1+ 4 a 0. 0. 0. 1. 0 d
I1 I7+ 4 b 0. 0. 0.5 1. 0 d
O1 O2- 16 f 0.18 0.07 0.18 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
K1+ 1.000
I7+ 7.000
O2- -2.000
