The compound described by CeAsO4 crystallizes in the monoclinic P2_1/c space group. Ce(1) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(4), and three equivalent O(2) atoms. As(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Ce(1) and one As(1) atom. In the second O site, O(2) is bonded in a 1-coordinate geometry to three equivalent Ce(1) and one As(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Ce(1) and one As(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Ce(1) and one As(1) atom. is represented by the CIF card [CIF]
data_CeAsO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.267
_cell_length_b   6.831
_cell_length_c   8.419
_cell_angle_alpha   53.577
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   336.268
_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
  Ce  Ce0  1  0.152  0.186  0.216  1.0
  Ce  Ce1  1  0.348  0.186  0.716  1.0
  Ce  Ce2  1  0.652  0.814  0.284  1.0
  Ce  Ce3  1  0.848  0.814  0.784  1.0
  As  As4  1  0.163  0.691  0.196  1.0
  As  As5  1  0.663  0.309  0.304  1.0
  As  As6  1  0.837  0.309  0.804  1.0
  As  As7  1  0.337  0.691  0.696  1.0
  O  O8  1  0.607  0.346  0.484  1.0
  O  O9  1  0.893  0.346  0.984  1.0
  O  O10  1  0.657  0.105  0.893  1.0
  O  O11  1  0.843  0.105  0.393  1.0
  O  O12  1  0.215  0.393  0.383  1.0
  O  O13  1  0.504  0.826  0.747  1.0
  O  O14  1  0.157  0.895  0.607  1.0
  O  O15  1  0.715  0.607  0.117  1.0
  O  O16  1  0.996  0.826  0.247  1.0
  O  O17  1  0.393  0.654  0.516  1.0
  O  O18  1  0.004  0.174  0.753  1.0
  O  O19  1  0.285  0.393  0.883  1.0
  O  O20  1  0.785  0.607  0.617  1.0
  O  O21  1  0.107  0.654  0.016  1.0
  O  O22  1  0.343  0.895  0.107  1.0
  O  O23  1  0.496  0.174  0.253  1.0
[/CIF]
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The compound described by CeAsO4 crystallizes in the monoclinic P2_1/c space group. Ce(1) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(4), and three equivalent O(2) atoms. As(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Ce(1) and one As(1) atom. In the second O site, O(2) is bonded in a 1-coordinate geometry to three equivalent Ce(1) and one As(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Ce(1) and one As(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Ce(1) and one As(1) atom. is represented by the CIF card [CIF]
data_CeAsO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.267
_cell_length_b   6.831
_cell_length_c   8.419
_cell_angle_alpha   53.577
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   336.268
_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
  Ce  Ce0  1  0.152  0.186  0.216  1.0
  Ce  Ce1  1  0.348  0.186  0.716  1.0
  Ce  Ce2  1  0.652  0.814  0.284  1.0
  Ce  Ce3  1  0.848  0.814  0.784  1.0
  As  As4  1  0.163  0.691  0.196  1.0
  As  As5  1  0.663  0.309  0.304  1.0
  As  As6  1  0.837  0.309  0.804  1.0
  As  As7  1  0.337  0.691  0.696  1.0
  O  O8  1  0.607  0.346  0.484  1.0
  O  O9  1  0.893  0.346  0.984  1.0
  O  O10  1  0.657  0.105  0.893  1.0
  O  O11  1  0.843  0.105  0.393  1.0
  O  O12  1  0.215  0.393  0.383  1.0
  O  O13  1  0.504  0.826  0.747  1.0
  O  O14  1  0.157  0.895  0.607  1.0
  O  O15  1  0.715  0.607  0.117  1.0
  O  O16  1  0.996  0.826  0.247  1.0
  O  O17  1  0.393  0.654  0.516  1.0
  O  O18  1  0.004  0.174  0.753  1.0
  O  O19  1  0.285  0.393  0.883  1.0
  O  O20  1  0.785  0.607  0.617  1.0
  O  O21  1  0.107  0.654  0.016  1.0
  O  O22  1  0.343  0.895  0.107  1.0
  O  O23  1  0.496  0.174  0.253  1.0
[/CIF]
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