The material described by KH2AsO4 crystallizes in the tetragonal I-42d space group. K(1) is bonded in a 8-coordinate geometry to eight equivalent O(1) atoms. As(1) is bonded in a tetrahedral geometry to four equivalent O(1) atoms. H(1) is bonded in a linear geometry to two equivalent O(1) atoms. O(1) is bonded in a 2-coordinate geometry to two equivalent K(1), one As(1), and one H(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KAs(HO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.556
_cell_length_b   6.556
_cell_length_c   6.556
_cell_angle_alpha   108.272
_cell_angle_beta   108.272
_cell_angle_gamma   111.897
_symmetry_Int_Tables_number   1
_cell_volume   216.647
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  K  K0  1  0.500  0.500  0.000  1.0
  K  K1  1  0.250  0.750  0.500  1.0
  As  As2  1  0.000  0.000  0.000  1.0
  As  As3  1  0.750  0.250  0.500  1.0
  H  H4  1  0.719  0.625  0.594  1.0
  H  H5  1  0.031  0.125  0.406  1.0
  H  H6  1  0.875  0.281  0.906  1.0
  H  H7  1  0.375  0.969  0.094  1.0
  O  O8  1  0.706  0.773  0.749  1.0
  O  O9  1  0.024  0.957  0.251  1.0
  O  O10  1  0.043  0.294  0.067  1.0
  O  O11  1  0.044  0.293  0.567  1.0
  O  O12  1  0.227  0.976  0.933  1.0
  O  O13  1  0.726  0.477  0.433  1.0
  O  O14  1  0.707  0.274  0.751  1.0
  O  O15  1  0.523  0.956  0.249  1.0
[/CIF]
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The material described by KH2AsO4 crystallizes in the tetragonal I-42d space group. K(1) is bonded in a 8-coordinate geometry to eight equivalent O(1) atoms. As(1) is bonded in a tetrahedral geometry to four equivalent O(1) atoms. H(1) is bonded in a linear geometry to two equivalent O(1) atoms. O(1) is bonded in a 2-coordinate geometry to two equivalent K(1), one As(1), and one H(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KAs(HO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.556
_cell_length_b   6.556
_cell_length_c   6.556
_cell_angle_alpha   108.272
_cell_angle_beta   108.272
_cell_angle_gamma   111.897
_symmetry_Int_Tables_number   1
_cell_volume   216.647
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  K  K0  1  0.500  0.500  0.000  1.0
  K  K1  1  0.250  0.750  0.500  1.0
  As  As2  1  0.000  0.000  0.000  1.0
  As  As3  1  0.750  0.250  0.500  1.0
  H  H4  1  0.719  0.625  0.594  1.0
  H  H5  1  0.031  0.125  0.406  1.0
  H  H6  1  0.875  0.281  0.906  1.0
  H  H7  1  0.375  0.969  0.094  1.0
  O  O8  1  0.706  0.773  0.749  1.0
  O  O9  1  0.024  0.957  0.251  1.0
  O  O10  1  0.043  0.294  0.067  1.0
  O  O11  1  0.044  0.293  0.567  1.0
  O  O12  1  0.227  0.976  0.933  1.0
  O  O13  1  0.726  0.477  0.433  1.0
  O  O14  1  0.707  0.274  0.751  1.0
  O  O15  1  0.523  0.956  0.249  1.0
[/CIF]
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