The crystal structure described by CoP2 is Marcasite-like structured and crystallizes in the monoclinic P2_1/c space group. Co(1) is bonded to three equivalent P(1) and three equivalent P(2) atoms to form CoP6 octahedra that share corners with eight equivalent Co(1)P6 octahedra, corners with three equivalent P(1)Co3P tetrahedra, corners with three equivalent P(2)Co3P tetrahedra, and edges with two equivalent Co(1)P6 octahedra. The corner-sharing octahedral tilt angles range from 54-60°. There are two inequivalent P sites. In the first P site, P(2) is bonded to three equivalent Co(1) and one P(1) atom to form distorted PCo3P tetrahedra that share corners with three equivalent Co(1)P6 octahedra, corners with four equivalent P(2)Co3P tetrahedra, corners with nine equivalent P(1)Co3P tetrahedra, and  an edgeedge with one P(2)Co3P tetrahedra. The corner-sharing octahedral tilt angles range from 72-77°. In the second P site, P(1) is bonded to three equivalent Co(1) and one P(2) atom to form distorted PCo3P tetrahedra that share corners with three equivalent Co(1)P6 octahedra, corners with four equivalent P(1)Co3P tetrahedra, corners with nine equivalent P(2)Co3P tetrahedra, and  an edgeedge with one P(1)Co3P tetrahedra. The corner-sharing octahedral tilt angles range from 68-72°. is represented by the CIF card [CIF]
data_CoP2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.520
_cell_length_b   5.514
_cell_length_c   5.583
_cell_angle_alpha   114.326
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   154.833
_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  0.502  0.728  0.212  1.0
  Co  Co1  1  0.002  0.272  0.288  1.0
  Co  Co2  1  0.498  0.272  0.788  1.0
  Co  Co3  1  0.998  0.728  0.712  1.0
  P  P4  1  0.126  0.842  0.132  1.0
  P  P5  1  0.626  0.158  0.368  1.0
  P  P6  1  0.874  0.158  0.868  1.0
  P  P7  1  0.374  0.842  0.632  1.0
  P  P8  1  0.627  0.661  0.818  1.0
  P  P9  1  0.127  0.339  0.682  1.0
  P  P10  1  0.373  0.339  0.182  1.0
  P  P11  1  0.873  0.661  0.318  1.0
[/CIF]
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The crystal structure described by CoP2 is Marcasite-like structured and crystallizes in the monoclinic P2_1/c space group. Co(1) is bonded to three equivalent P(1) and three equivalent P(2) atoms to form CoP6 octahedra that share corners with eight equivalent Co(1)P6 octahedra, corners with three equivalent P(1)Co3P tetrahedra, corners with three equivalent P(2)Co3P tetrahedra, and edges with two equivalent Co(1)P6 octahedra. The corner-sharing octahedral tilt angles range from 54-60°. There are two inequivalent P sites. In the first P site, P(2) is bonded to three equivalent Co(1) and one P(1) atom to form distorted PCo3P tetrahedra that share corners with three equivalent Co(1)P6 octahedra, corners with four equivalent P(2)Co3P tetrahedra, corners with nine equivalent P(1)Co3P tetrahedra, and  an edgeedge with one P(2)Co3P tetrahedra. The corner-sharing octahedral tilt angles range from 72-77°. In the second P site, P(1) is bonded to three equivalent Co(1) and one P(2) atom to form distorted PCo3P tetrahedra that share corners with three equivalent Co(1)P6 octahedra, corners with four equivalent P(1)Co3P tetrahedra, corners with nine equivalent P(2)Co3P tetrahedra, and  an edgeedge with one P(1)Co3P tetrahedra. The corner-sharing octahedral tilt angles range from 68-72°. is represented by the CIF card [CIF]
data_CoP2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.520
_cell_length_b   5.514
_cell_length_c   5.583
_cell_angle_alpha   114.326
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   154.833
_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  0.502  0.728  0.212  1.0
  Co  Co1  1  0.002  0.272  0.288  1.0
  Co  Co2  1  0.498  0.272  0.788  1.0
  Co  Co3  1  0.998  0.728  0.712  1.0
  P  P4  1  0.126  0.842  0.132  1.0
  P  P5  1  0.626  0.158  0.368  1.0
  P  P6  1  0.874  0.158  0.868  1.0
  P  P7  1  0.374  0.842  0.632  1.0
  P  P8  1  0.627  0.661  0.818  1.0
  P  P9  1  0.127  0.339  0.682  1.0
  P  P10  1  0.373  0.339  0.182  1.0
  P  P11  1  0.873  0.661  0.318  1.0
[/CIF]
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