The crystal structure described by CoB2O4 crystallizes in the monoclinic C2/c space group. Co(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form CoO6 octahedra that share corners with twelve equivalent B(1)O4 tetrahedra and edges with two equivalent Co(1)O6 octahedra. B(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form BO4 tetrahedra that share corners with six equivalent Co(1)O6 octahedra, corners with two equivalent B(1)O4 tetrahedra, and  an edgeedge with one B(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 43-64°. There are two inequivalent O sites. In the first O site, O(2) is bonded in a trigonal planar geometry to one Co(1) and two equivalent B(1) atoms. In the second O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Co(1) and two equivalent B(1) atoms. is represented by the CIF card [CIF]
data_Co(BO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.456
_cell_length_b   5.508
_cell_length_c   5.508
_cell_angle_alpha   62.039
_cell_angle_beta   74.587
_cell_angle_gamma   74.585
_symmetry_Int_Tables_number   1
_cell_volume   113.524
_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
  B  B0  1  0.876  0.706  0.921  1.0
  B  B1  1  0.624  0.079  0.294  1.0
  B  B2  1  0.124  0.294  0.079  1.0
  B  B3  1  0.376  0.921  0.706  1.0
  Co  Co4  1  0.250  0.659  0.341  1.0
  Co  Co5  1  0.750  0.341  0.659  1.0
  O  O6  1  0.521  0.798  0.492  1.0
  O  O7  1  0.979  0.508  0.202  1.0
  O  O8  1  0.479  0.202  0.508  1.0
  O  O9  1  0.021  0.492  0.798  1.0
  O  O10  1  0.534  0.774  0.947  1.0
  O  O11  1  0.966  0.053  0.226  1.0
  O  O12  1  0.466  0.226  0.053  1.0
  O  O13  1  0.034  0.947  0.774  1.0
[/CIF]
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The crystal structure described by CoB2O4 crystallizes in the monoclinic C2/c space group. Co(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form CoO6 octahedra that share corners with twelve equivalent B(1)O4 tetrahedra and edges with two equivalent Co(1)O6 octahedra. B(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form BO4 tetrahedra that share corners with six equivalent Co(1)O6 octahedra, corners with two equivalent B(1)O4 tetrahedra, and  an edgeedge with one B(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 43-64°. There are two inequivalent O sites. In the first O site, O(2) is bonded in a trigonal planar geometry to one Co(1) and two equivalent B(1) atoms. In the second O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Co(1) and two equivalent B(1) atoms. is represented by the CIF card [CIF]
data_Co(BO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.456
_cell_length_b   5.508
_cell_length_c   5.508
_cell_angle_alpha   62.039
_cell_angle_beta   74.587
_cell_angle_gamma   74.585
_symmetry_Int_Tables_number   1
_cell_volume   113.524
_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
  B  B0  1  0.876  0.706  0.921  1.0
  B  B1  1  0.624  0.079  0.294  1.0
  B  B2  1  0.124  0.294  0.079  1.0
  B  B3  1  0.376  0.921  0.706  1.0
  Co  Co4  1  0.250  0.659  0.341  1.0
  Co  Co5  1  0.750  0.341  0.659  1.0
  O  O6  1  0.521  0.798  0.492  1.0
  O  O7  1  0.979  0.508  0.202  1.0
  O  O8  1  0.479  0.202  0.508  1.0
  O  O9  1  0.021  0.492  0.798  1.0
  O  O10  1  0.534  0.774  0.947  1.0
  O  O11  1  0.966  0.053  0.226  1.0
  O  O12  1  0.466  0.226  0.053  1.0
  O  O13  1  0.034  0.947  0.774  1.0
[/CIF]
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