The material described by DyCuTe2 crystallizes in the monoclinic P2/m space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to two equivalent Te(2) and four equivalent Te(1) atoms to form distorted DyTe6 octahedra that share corners with four equivalent Cu(1)Te4 tetrahedra, edges with two equivalent Dy(1)Te6 octahedra, edges with four equivalent Dy(2)Te6 octahedra, and edges with four equivalent Cu(1)Te4 tetrahedra. In the second Dy site, Dy(2) is bonded to two equivalent Te(1) and four equivalent Te(2) atoms to form distorted DyTe6 octahedra that share corners with eight equivalent Cu(1)Te4 tetrahedra, edges with two equivalent Dy(2)Te6 octahedra, edges with four equivalent Dy(1)Te6 octahedra, and edges with two equivalent Cu(1)Te4 tetrahedra. Cu(1) is bonded to two equivalent Te(1) and two equivalent Te(2) atoms to form distorted CuTe4 tetrahedra that share corners with two equivalent Dy(1)Te6 octahedra, corners with four equivalent Dy(2)Te6 octahedra, corners with two equivalent Cu(1)Te4 tetrahedra,  an edgeedge with one Dy(2)Te6 octahedra, edges with two equivalent Dy(1)Te6 octahedra, and  an edgeedge with one Cu(1)Te4 tetrahedra. The corner-sharing octahedral tilt angles range from 22-56°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one Dy(2), two equivalent Dy(1), and two equivalent Cu(1) atoms to form a mixture of distorted corner and edge-sharing TeDy3Cu2 square pyramids. In the second Te site, Te(2) is bonded to one Dy(1), two equivalent Dy(2), and two equivalent Cu(1) atoms to form a mixture of corner and edge-sharing TeDy3Cu2 square pyramids. is represented by the CIF file [CIF]
data_DyCuTe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.331
_cell_length_b   6.899
_cell_length_c   7.477
_cell_angle_alpha   90.947
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   223.378
_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  0.000  0.000  0.000  1.0
  Dy  Dy1  1  0.500  0.000  0.500  1.0
  Cu  Cu2  1  0.500  0.646  0.160  1.0
  Cu  Cu3  1  0.500  0.354  0.840  1.0
  Te  Te4  1  0.500  0.260  0.175  1.0
  Te  Te5  1  0.000  0.262  0.666  1.0
  Te  Te6  1  0.000  0.738  0.334  1.0
  Te  Te7  1  0.500  0.740  0.825  1.0
[/CIF]
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The material described by DyCuTe2 crystallizes in the monoclinic P2/m space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to two equivalent Te(2) and four equivalent Te(1) atoms to form distorted DyTe6 octahedra that share corners with four equivalent Cu(1)Te4 tetrahedra, edges with two equivalent Dy(1)Te6 octahedra, edges with four equivalent Dy(2)Te6 octahedra, and edges with four equivalent Cu(1)Te4 tetrahedra. In the second Dy site, Dy(2) is bonded to two equivalent Te(1) and four equivalent Te(2) atoms to form distorted DyTe6 octahedra that share corners with eight equivalent Cu(1)Te4 tetrahedra, edges with two equivalent Dy(2)Te6 octahedra, edges with four equivalent Dy(1)Te6 octahedra, and edges with two equivalent Cu(1)Te4 tetrahedra. Cu(1) is bonded to two equivalent Te(1) and two equivalent Te(2) atoms to form distorted CuTe4 tetrahedra that share corners with two equivalent Dy(1)Te6 octahedra, corners with four equivalent Dy(2)Te6 octahedra, corners with two equivalent Cu(1)Te4 tetrahedra,  an edgeedge with one Dy(2)Te6 octahedra, edges with two equivalent Dy(1)Te6 octahedra, and  an edgeedge with one Cu(1)Te4 tetrahedra. The corner-sharing octahedral tilt angles range from 22-56°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one Dy(2), two equivalent Dy(1), and two equivalent Cu(1) atoms to form a mixture of distorted corner and edge-sharing TeDy3Cu2 square pyramids. In the second Te site, Te(2) is bonded to one Dy(1), two equivalent Dy(2), and two equivalent Cu(1) atoms to form a mixture of corner and edge-sharing TeDy3Cu2 square pyramids. is represented by the CIF file [CIF]
data_DyCuTe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.331
_cell_length_b   6.899
_cell_length_c   7.477
_cell_angle_alpha   90.947
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   223.378
_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  0.000  0.000  0.000  1.0
  Dy  Dy1  1  0.500  0.000  0.500  1.0
  Cu  Cu2  1  0.500  0.646  0.160  1.0
  Cu  Cu3  1  0.500  0.354  0.840  1.0
  Te  Te4  1  0.500  0.260  0.175  1.0
  Te  Te5  1  0.000  0.262  0.666  1.0
  Te  Te6  1  0.000  0.738  0.334  1.0
  Te  Te7  1  0.500  0.740  0.825  1.0
[/CIF]
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