The structure described by LaAsO3 is Potassium chlorate structured and crystallizes in the monoclinic P2_1/m space group. La(1) is bonded in a 9-coordinate geometry to three equivalent O(1) and six equivalent O(2) atoms. As(1) is bonded in a distorted trigonal non-coplanar geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to three equivalent La(1) and one As(1) atom. In the second O site, O(2) is bonded to three equivalent La(1) and one As(1) atom to form a mixture of distorted edge and corner-sharing OLa3As tetrahedra. is represented by the CIF file [CIF]
data_LaAsO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.323
_cell_length_b   4.434
_cell_length_c   6.222
_cell_angle_alpha   74.463
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   141.514
_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
  La  La0  1  0.750  0.663  0.703  1.0
  La  La1  1  0.250  0.337  0.297  1.0
  As  As2  1  0.750  0.922  0.145  1.0
  As  As3  1  0.250  0.078  0.855  1.0
  O  O4  1  0.750  0.329  0.120  1.0
  O  O5  1  0.250  0.671  0.880  1.0
  O  O6  1  0.503  0.807  0.342  1.0
  O  O7  1  0.003  0.193  0.658  1.0
  O  O8  1  0.497  0.193  0.658  1.0
  O  O9  1  0.997  0.807  0.342  1.0
[/CIF]
.
The structure described by LaAsO3 is Potassium chlorate structured and crystallizes in the monoclinic P2_1/m space group. La(1) is bonded in a 9-coordinate geometry to three equivalent O(1) and six equivalent O(2) atoms. As(1) is bonded in a distorted trigonal non-coplanar geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to three equivalent La(1) and one As(1) atom. In the second O site, O(2) is bonded to three equivalent La(1) and one As(1) atom to form a mixture of distorted edge and corner-sharing OLa3As tetrahedra. is represented by the CIF file [CIF]
data_LaAsO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.323
_cell_length_b   4.434
_cell_length_c   6.222
_cell_angle_alpha   74.463
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   141.514
_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
  La  La0  1  0.750  0.663  0.703  1.0
  La  La1  1  0.250  0.337  0.297  1.0
  As  As2  1  0.750  0.922  0.145  1.0
  As  As3  1  0.250  0.078  0.855  1.0
  O  O4  1  0.750  0.329  0.120  1.0
  O  O5  1  0.250  0.671  0.880  1.0
  O  O6  1  0.503  0.807  0.342  1.0
  O  O7  1  0.003  0.193  0.658  1.0
  O  O8  1  0.497  0.193  0.658  1.0
  O  O9  1  0.997  0.807  0.342  1.0
[/CIF]
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