The compound described by KAsO3 crystallizes in the orthorhombic P2_12_12_1 space group. K(1) is bonded in a 7-coordinate geometry to one O(3), three equivalent O(1), and three equivalent O(2) atoms. As(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form corner-sharing AsO4 tetrahedra. There are three inequivalent O sites. In the first O site, O(1) is bonded to three equivalent K(1) and one As(1) atom to form distorted corner-sharing OK3As tetrahedra. In the second O site, O(2) is bonded in a 4-coordinate geometry to three equivalent K(1) and one As(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one K(1) and two equivalent As(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_KAsO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.592
_cell_length_b   5.914
_cell_length_c   12.933
_cell_angle_alpha   90.018
_cell_angle_beta   89.997
_cell_angle_gamma   90.002
_symmetry_Int_Tables_number   1
_cell_volume   351.174
_cell_formula_units_Z   4
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  0.783  0.318  0.642  1.0
  K  K1  1  0.217  0.818  0.859  1.0
  K  K2  1  0.717  0.682  0.141  1.0
  K  K3  1  0.283  0.182  0.359  1.0
  As  As4  1  0.332  0.810  0.578  1.0
  As  As5  1  0.668  0.310  0.922  1.0
  As  As6  1  0.167  0.190  0.078  1.0
  As  As7  1  0.832  0.690  0.422  1.0
  O  O8  1  0.264  0.621  0.669  1.0
  O  O9  1  0.736  0.121  0.831  1.0
  O  O10  1  0.236  0.379  0.169  1.0
  O  O11  1  0.764  0.879  0.331  1.0
  O  O12  1  0.273  0.083  0.591  1.0
  O  O13  1  0.727  0.583  0.908  1.0
  O  O14  1  0.227  0.917  0.092  1.0
  O  O15  1  0.773  0.417  0.408  1.0
  O  O16  1  0.208  0.720  0.454  1.0
  O  O17  1  0.792  0.220  0.046  1.0
  O  O18  1  0.292  0.280  0.954  1.0
  O  O19  1  0.708  0.780  0.546  1.0
[/CIF]
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The compound described by KAsO3 crystallizes in the orthorhombic P2_12_12_1 space group. K(1) is bonded in a 7-coordinate geometry to one O(3), three equivalent O(1), and three equivalent O(2) atoms. As(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form corner-sharing AsO4 tetrahedra. There are three inequivalent O sites. In the first O site, O(1) is bonded to three equivalent K(1) and one As(1) atom to form distorted corner-sharing OK3As tetrahedra. In the second O site, O(2) is bonded in a 4-coordinate geometry to three equivalent K(1) and one As(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one K(1) and two equivalent As(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_KAsO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.592
_cell_length_b   5.914
_cell_length_c   12.933
_cell_angle_alpha   90.018
_cell_angle_beta   89.997
_cell_angle_gamma   90.002
_symmetry_Int_Tables_number   1
_cell_volume   351.174
_cell_formula_units_Z   4
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  0.783  0.318  0.642  1.0
  K  K1  1  0.217  0.818  0.859  1.0
  K  K2  1  0.717  0.682  0.141  1.0
  K  K3  1  0.283  0.182  0.359  1.0
  As  As4  1  0.332  0.810  0.578  1.0
  As  As5  1  0.668  0.310  0.922  1.0
  As  As6  1  0.167  0.190  0.078  1.0
  As  As7  1  0.832  0.690  0.422  1.0
  O  O8  1  0.264  0.621  0.669  1.0
  O  O9  1  0.736  0.121  0.831  1.0
  O  O10  1  0.236  0.379  0.169  1.0
  O  O11  1  0.764  0.879  0.331  1.0
  O  O12  1  0.273  0.083  0.591  1.0
  O  O13  1  0.727  0.583  0.908  1.0
  O  O14  1  0.227  0.917  0.092  1.0
  O  O15  1  0.773  0.417  0.408  1.0
  O  O16  1  0.208  0.720  0.454  1.0
  O  O17  1  0.792  0.220  0.046  1.0
  O  O18  1  0.292  0.280  0.954  1.0
  O  O19  1  0.708  0.780  0.546  1.0
[/CIF]
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