The material structure described by Dy2Te3Se crystallizes in the monoclinic Cc space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to one Te(1), one Te(2), two equivalent Te(3), and one Se(1) atom to form a mixture of edge and corner-sharing DyTe4Se trigonal bipyramids. In the second Dy site, Dy(2) is bonded to one Te(1), one Te(3), two equivalent Te(2), and one Se(1) atom to form a mixture of distorted edge and corner-sharing DyTe4Se trigonal bipyramids. There are three inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted trigonal planar geometry to one Dy(1), one Dy(2), and one Se(1) atom. In the second Te site, Te(2) is bonded in a distorted T-shaped geometry to one Dy(1) and two equivalent Dy(2) atoms. In the third Te site, Te(3) is bonded in a distorted trigonal planar geometry to one Dy(2) and two equivalent Dy(1) atoms. Se(1) is bonded in a 3-coordinate geometry to one Dy(1), one Dy(2), and one Te(1) atom. is represented by the CIF card [CIF]
data_Dy2Te3Se
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.966
_cell_length_b   8.966
_cell_length_c   8.671
_cell_angle_alpha   88.849
_cell_angle_beta   88.849
_cell_angle_gamma   131.563
_symmetry_Int_Tables_number   1
_cell_volume   520.910
_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  0.346  0.472  0.078  1.0
  Dy  Dy1  1  0.236  0.763  0.582  1.0
  Dy  Dy2  1  0.472  0.346  0.578  1.0
  Dy  Dy3  1  0.763  0.236  0.082  1.0
  Te  Te4  1  0.906  0.734  0.481  1.0
  Te  Te5  1  0.734  0.906  0.981  1.0
  Te  Te6  1  0.143  0.571  0.901  1.0
  Te  Te7  1  0.571  0.143  0.401  1.0
  Te  Te8  1  0.517  0.314  0.919  1.0
  Te  Te9  1  0.314  0.517  0.419  1.0
  Se  Se10  1  0.974  0.131  0.211  1.0
  Se  Se11  1  0.131  0.974  0.711  1.0
[/CIF]
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The material structure described by Dy2Te3Se crystallizes in the monoclinic Cc space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to one Te(1), one Te(2), two equivalent Te(3), and one Se(1) atom to form a mixture of edge and corner-sharing DyTe4Se trigonal bipyramids. In the second Dy site, Dy(2) is bonded to one Te(1), one Te(3), two equivalent Te(2), and one Se(1) atom to form a mixture of distorted edge and corner-sharing DyTe4Se trigonal bipyramids. There are three inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted trigonal planar geometry to one Dy(1), one Dy(2), and one Se(1) atom. In the second Te site, Te(2) is bonded in a distorted T-shaped geometry to one Dy(1) and two equivalent Dy(2) atoms. In the third Te site, Te(3) is bonded in a distorted trigonal planar geometry to one Dy(2) and two equivalent Dy(1) atoms. Se(1) is bonded in a 3-coordinate geometry to one Dy(1), one Dy(2), and one Te(1) atom. is represented by the CIF card [CIF]
data_Dy2Te3Se
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.966
_cell_length_b   8.966
_cell_length_c   8.671
_cell_angle_alpha   88.849
_cell_angle_beta   88.849
_cell_angle_gamma   131.563
_symmetry_Int_Tables_number   1
_cell_volume   520.910
_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  0.346  0.472  0.078  1.0
  Dy  Dy1  1  0.236  0.763  0.582  1.0
  Dy  Dy2  1  0.472  0.346  0.578  1.0
  Dy  Dy3  1  0.763  0.236  0.082  1.0
  Te  Te4  1  0.906  0.734  0.481  1.0
  Te  Te5  1  0.734  0.906  0.981  1.0
  Te  Te6  1  0.143  0.571  0.901  1.0
  Te  Te7  1  0.571  0.143  0.401  1.0
  Te  Te8  1  0.517  0.314  0.919  1.0
  Te  Te9  1  0.314  0.517  0.419  1.0
  Se  Se10  1  0.974  0.131  0.211  1.0
  Se  Se11  1  0.131  0.974  0.711  1.0
[/CIF]
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