The material described by Co(AsO2)2 crystallizes in the tetragonal P4_2/mbc space group. Co(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form edge-sharing CoO6 octahedra. As(1) is bonded in a distorted T-shaped geometry to one O(2) and two equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Co(1) and one As(1) atom. In the second O site, O(1) is bonded in a trigonal planar geometry to one Co(1) and two equivalent As(1) atoms. is represented by the CIF file [CIF]
data_Co(AsO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.365
_cell_length_b   8.365
_cell_length_c   5.623
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   393.464
_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
  Co  Co0  1  0.500  0.000  0.250  1.0
  Co  Co1  1  0.000  0.500  0.750  1.0
  Co  Co2  1  0.500  0.000  0.750  1.0
  Co  Co3  1  0.000  0.500  0.250  1.0
  As  As4  1  0.169  0.187  0.000  1.0
  As  As5  1  0.187  0.831  0.500  1.0
  As  As6  1  0.831  0.813  0.000  1.0
  As  As7  1  0.813  0.169  0.500  1.0
  As  As8  1  0.331  0.687  0.000  1.0
  As  As9  1  0.669  0.313  0.000  1.0
  As  As10  1  0.687  0.669  0.500  1.0
  As  As11  1  0.313  0.331  0.500  1.0
  O  O12  1  0.314  0.186  0.250  1.0
  O  O13  1  0.186  0.686  0.750  1.0
  O  O14  1  0.686  0.814  0.250  1.0
  O  O15  1  0.814  0.314  0.750  1.0
  O  O16  1  0.686  0.814  0.750  1.0
  O  O17  1  0.814  0.314  0.250  1.0
  O  O18  1  0.314  0.186  0.750  1.0
  O  O19  1  0.186  0.686  0.250  1.0
  O  O20  1  0.636  0.106  0.000  1.0
  O  O21  1  0.106  0.364  0.500  1.0
  O  O22  1  0.364  0.894  0.000  1.0
  O  O23  1  0.894  0.636  0.500  1.0
  O  O24  1  0.864  0.606  0.000  1.0
  O  O25  1  0.136  0.394  0.000  1.0
  O  O26  1  0.606  0.136  0.500  1.0
  O  O27  1  0.394  0.864  0.500  1.0
[/CIF]
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The material described by Co(AsO2)2 crystallizes in the tetragonal P4_2/mbc space group. Co(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form edge-sharing CoO6 octahedra. As(1) is bonded in a distorted T-shaped geometry to one O(2) and two equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Co(1) and one As(1) atom. In the second O site, O(1) is bonded in a trigonal planar geometry to one Co(1) and two equivalent As(1) atoms. is represented by the CIF file [CIF]
data_Co(AsO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.365
_cell_length_b   8.365
_cell_length_c   5.623
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   393.464
_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
  Co  Co0  1  0.500  0.000  0.250  1.0
  Co  Co1  1  0.000  0.500  0.750  1.0
  Co  Co2  1  0.500  0.000  0.750  1.0
  Co  Co3  1  0.000  0.500  0.250  1.0
  As  As4  1  0.169  0.187  0.000  1.0
  As  As5  1  0.187  0.831  0.500  1.0
  As  As6  1  0.831  0.813  0.000  1.0
  As  As7  1  0.813  0.169  0.500  1.0
  As  As8  1  0.331  0.687  0.000  1.0
  As  As9  1  0.669  0.313  0.000  1.0
  As  As10  1  0.687  0.669  0.500  1.0
  As  As11  1  0.313  0.331  0.500  1.0
  O  O12  1  0.314  0.186  0.250  1.0
  O  O13  1  0.186  0.686  0.750  1.0
  O  O14  1  0.686  0.814  0.250  1.0
  O  O15  1  0.814  0.314  0.750  1.0
  O  O16  1  0.686  0.814  0.750  1.0
  O  O17  1  0.814  0.314  0.250  1.0
  O  O18  1  0.314  0.186  0.750  1.0
  O  O19  1  0.186  0.686  0.250  1.0
  O  O20  1  0.636  0.106  0.000  1.0
  O  O21  1  0.106  0.364  0.500  1.0
  O  O22  1  0.364  0.894  0.000  1.0
  O  O23  1  0.894  0.636  0.500  1.0
  O  O24  1  0.864  0.606  0.000  1.0
  O  O25  1  0.136  0.394  0.000  1.0
  O  O26  1  0.606  0.136  0.500  1.0
  O  O27  1  0.394  0.864  0.500  1.0
[/CIF]
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