The material structure described by DySe2 crystallizes in the tetragonal P4/nmm space group. Dy(1) is bonded in a 9-coordinate geometry to four equivalent Se(1) and five equivalent Se(2) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a 8-coordinate geometry to four equivalent Dy(1) and four equivalent Se(1) atoms. In the second Se site, Se(2) is bonded to five equivalent Dy(1) atoms to form a mixture of distorted corner and edge-sharing SeDy5 trigonal bipyramids. is represented by the CIF file [CIF]
data_DySe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.058
_cell_length_b   4.058
_cell_length_c   8.297
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   136.646
_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
  Dy  Dy0  1  0.750  0.750  0.727  1.0
  Dy  Dy1  1  0.250  0.250  0.273  1.0
  Se  Se2  1  0.750  0.250  0.000  1.0
  Se  Se3  1  0.250  0.750  0.000  1.0
  Se  Se4  1  0.750  0.750  0.370  1.0
  Se  Se5  1  0.250  0.250  0.630  1.0
[/CIF]
.
The material structure described by DySe2 crystallizes in the tetragonal P4/nmm space group. Dy(1) is bonded in a 9-coordinate geometry to four equivalent Se(1) and five equivalent Se(2) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a 8-coordinate geometry to four equivalent Dy(1) and four equivalent Se(1) atoms. In the second Se site, Se(2) is bonded to five equivalent Dy(1) atoms to form a mixture of distorted corner and edge-sharing SeDy5 trigonal bipyramids. is represented by the CIF file [CIF]
data_DySe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.058
_cell_length_b   4.058
_cell_length_c   8.297
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   136.646
_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
  Dy  Dy0  1  0.750  0.750  0.727  1.0
  Dy  Dy1  1  0.250  0.250  0.273  1.0
  Se  Se2  1  0.750  0.250  0.000  1.0
  Se  Se3  1  0.250  0.750  0.000  1.0
  Se  Se4  1  0.750  0.750  0.370  1.0
  Se  Se5  1  0.250  0.250  0.630  1.0
[/CIF]
.