The crystal structure described by UCoSe3 crystallizes in the orthorhombic Pnma space group. U(1) is bonded in a 8-coordinate geometry to two equivalent Se(1) and six equivalent Se(2) atoms. Co(1) is bonded to two equivalent Se(1) and four equivalent Se(2) atoms to form corner-sharing CoSe6 octahedra. The corner-sharing octahedral tilt angles range from 41-48°. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded to two equivalent U(1) and two equivalent Co(1) atoms to form distorted SeU2Co2 tetrahedra that share corners with four equivalent Se(1)U2Co2 tetrahedra, corners with eight equivalent Se(2)U3Co2 trigonal bipyramids, and edges with six equivalent Se(2)U3Co2 trigonal bipyramids. In the second Se site, Se(2) is bonded to three equivalent U(1) and two equivalent Co(1) atoms to form distorted SeU3Co2 trigonal bipyramids that share corners with four equivalent Se(1)U2Co2 tetrahedra, corners with nine equivalent Se(2)U3Co2 trigonal bipyramids, edges with three equivalent Se(1)U2Co2 tetrahedra, and edges with six equivalent Se(2)U3Co2 trigonal bipyramids. is represented by the CIF card [CIF]
data_UCoSe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.228
_cell_length_b   7.166
_cell_length_c   8.923
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   398.212
_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
  U  U0  1  0.428  0.868  0.250  1.0
  U  U1  1  0.072  0.368  0.250  1.0
  U  U2  1  0.572  0.132  0.750  1.0
  U  U3  1  0.928  0.632  0.750  1.0
  Co  Co4  1  0.500  0.500  0.000  1.0
  Co  Co5  1  0.000  0.000  0.500  1.0
  Co  Co6  1  0.500  0.500  0.500  1.0
  Co  Co7  1  0.000  0.000  0.000  1.0
  Se  Se8  1  0.654  0.536  0.250  1.0
  Se  Se9  1  0.846  0.036  0.250  1.0
  Se  Se10  1  0.346  0.464  0.750  1.0
  Se  Se11  1  0.154  0.964  0.750  1.0
  Se  Se12  1  0.656  0.820  0.551  1.0
  Se  Se13  1  0.844  0.320  0.949  1.0
  Se  Se14  1  0.344  0.180  0.051  1.0
  Se  Se15  1  0.156  0.680  0.449  1.0
  Se  Se16  1  0.344  0.180  0.449  1.0
  Se  Se17  1  0.156  0.680  0.051  1.0
  Se  Se18  1  0.656  0.820  0.949  1.0
  Se  Se19  1  0.844  0.320  0.551  1.0
[/CIF]
.
The crystal structure described by UCoSe3 crystallizes in the orthorhombic Pnma space group. U(1) is bonded in a 8-coordinate geometry to two equivalent Se(1) and six equivalent Se(2) atoms. Co(1) is bonded to two equivalent Se(1) and four equivalent Se(2) atoms to form corner-sharing CoSe6 octahedra. The corner-sharing octahedral tilt angles range from 41-48°. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded to two equivalent U(1) and two equivalent Co(1) atoms to form distorted SeU2Co2 tetrahedra that share corners with four equivalent Se(1)U2Co2 tetrahedra, corners with eight equivalent Se(2)U3Co2 trigonal bipyramids, and edges with six equivalent Se(2)U3Co2 trigonal bipyramids. In the second Se site, Se(2) is bonded to three equivalent U(1) and two equivalent Co(1) atoms to form distorted SeU3Co2 trigonal bipyramids that share corners with four equivalent Se(1)U2Co2 tetrahedra, corners with nine equivalent Se(2)U3Co2 trigonal bipyramids, edges with three equivalent Se(1)U2Co2 tetrahedra, and edges with six equivalent Se(2)U3Co2 trigonal bipyramids. is represented by the CIF card [CIF]
data_UCoSe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.228
_cell_length_b   7.166
_cell_length_c   8.923
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   398.212
_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
  U  U0  1  0.428  0.868  0.250  1.0
  U  U1  1  0.072  0.368  0.250  1.0
  U  U2  1  0.572  0.132  0.750  1.0
  U  U3  1  0.928  0.632  0.750  1.0
  Co  Co4  1  0.500  0.500  0.000  1.0
  Co  Co5  1  0.000  0.000  0.500  1.0
  Co  Co6  1  0.500  0.500  0.500  1.0
  Co  Co7  1  0.000  0.000  0.000  1.0
  Se  Se8  1  0.654  0.536  0.250  1.0
  Se  Se9  1  0.846  0.036  0.250  1.0
  Se  Se10  1  0.346  0.464  0.750  1.0
  Se  Se11  1  0.154  0.964  0.750  1.0
  Se  Se12  1  0.656  0.820  0.551  1.0
  Se  Se13  1  0.844  0.320  0.949  1.0
  Se  Se14  1  0.344  0.180  0.051  1.0
  Se  Se15  1  0.156  0.680  0.449  1.0
  Se  Se16  1  0.344  0.180  0.449  1.0
  Se  Se17  1  0.156  0.680  0.051  1.0
  Se  Se18  1  0.656  0.820  0.949  1.0
  Se  Se19  1  0.844  0.320  0.551  1.0
[/CIF]
.