The structure described by LiDySe2 is Caswellsilverite-like structured and crystallizes in the tetragonal I4_1/amd space group. Li(1) is bonded to six Se(1,1) atoms to form LiSe6 octahedra that share corners with two equivalent Dy(1)Se6 octahedra, corners with four equivalent Li(1)Se6 octahedra, edges with four equivalent Li(1)Se6 octahedra, and edges with eight equivalent Dy(1)Se6 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. Dy(1) is bonded to six Se(1,1) atoms to form DySe6 octahedra that share corners with two equivalent Li(1)Se6 octahedra, corners with four equivalent Dy(1)Se6 octahedra, edges with four equivalent Dy(1)Se6 octahedra, and edges with eight equivalent Li(1)Se6 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. There are four inequivalent Se sites. In the first Se site, Se(1) is bonded to three equivalent Li(1) and three equivalent Dy(1) atoms to form a mixture of edge and corner-sharing SeLi3Dy3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the second Se site, Se(1) is bonded to three equivalent Li(1) and three equivalent Dy(1) atoms to form a mixture of edge and corner-sharing SeLi3Dy3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the third Se site, Se(1) is bonded to three equivalent Li(1) and three equivalent Dy(1) atoms to form a mixture of edge and corner-sharing SeLi3Dy3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fourth Se site, Se(1) is bonded to three equivalent Li(1) and three equivalent Dy(1) atoms to form a mixture of edge and corner-sharing SeLi3Dy3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. is represented by the CIF file [CIF]
data_LiDySe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.035
_cell_length_b   7.035
_cell_length_c   7.035
_cell_angle_alpha   132.535
_cell_angle_beta   132.535
_cell_angle_gamma   69.386
_symmetry_Int_Tables_number   1
_cell_volume   185.451
_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
  Li  Li0  1  0.000  0.000  0.000  1.0
  Li  Li1  1  0.750  0.250  0.500  1.0
  Dy  Dy2  1  0.500  0.500  0.000  1.0
  Dy  Dy3  1  0.250  0.750  0.500  1.0
  Se  Se4  1  0.746  0.746  0.000  1.0
  Se  Se5  1  0.254  0.254  0.000  1.0
  Se  Se6  1  0.004  0.504  0.500  1.0
  Se  Se7  1  0.496  0.996  0.500  1.0
[/CIF]
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The structure described by LiDySe2 is Caswellsilverite-like structured and crystallizes in the tetragonal I4_1/amd space group. Li(1) is bonded to six Se(1,1) atoms to form LiSe6 octahedra that share corners with two equivalent Dy(1)Se6 octahedra, corners with four equivalent Li(1)Se6 octahedra, edges with four equivalent Li(1)Se6 octahedra, and edges with eight equivalent Dy(1)Se6 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. Dy(1) is bonded to six Se(1,1) atoms to form DySe6 octahedra that share corners with two equivalent Li(1)Se6 octahedra, corners with four equivalent Dy(1)Se6 octahedra, edges with four equivalent Dy(1)Se6 octahedra, and edges with eight equivalent Li(1)Se6 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. There are four inequivalent Se sites. In the first Se site, Se(1) is bonded to three equivalent Li(1) and three equivalent Dy(1) atoms to form a mixture of edge and corner-sharing SeLi3Dy3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the second Se site, Se(1) is bonded to three equivalent Li(1) and three equivalent Dy(1) atoms to form a mixture of edge and corner-sharing SeLi3Dy3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the third Se site, Se(1) is bonded to three equivalent Li(1) and three equivalent Dy(1) atoms to form a mixture of edge and corner-sharing SeLi3Dy3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fourth Se site, Se(1) is bonded to three equivalent Li(1) and three equivalent Dy(1) atoms to form a mixture of edge and corner-sharing SeLi3Dy3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. is represented by the CIF file [CIF]
data_LiDySe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.035
_cell_length_b   7.035
_cell_length_c   7.035
_cell_angle_alpha   132.535
_cell_angle_beta   132.535
_cell_angle_gamma   69.386
_symmetry_Int_Tables_number   1
_cell_volume   185.451
_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
  Li  Li0  1  0.000  0.000  0.000  1.0
  Li  Li1  1  0.750  0.250  0.500  1.0
  Dy  Dy2  1  0.500  0.500  0.000  1.0
  Dy  Dy3  1  0.250  0.750  0.500  1.0
  Se  Se4  1  0.746  0.746  0.000  1.0
  Se  Se5  1  0.254  0.254  0.000  1.0
  Se  Se6  1  0.004  0.504  0.500  1.0
  Se  Se7  1  0.496  0.996  0.500  1.0
[/CIF]
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