The material structure described by Er2Te3 crystallizes in the orthorhombic Fddd space group. There are two inequivalent Er sites. In the first Er site, Er(1) is bonded to two equivalent Te(2) and four equivalent Te(1) atoms to form a mixture of corner and edge-sharing ErTe6 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the second Er site, Er(2) is bonded to two equivalent Te(2) and four equivalent Te(1) atoms to form a mixture of corner and edge-sharing ErTe6 octahedra. The corner-sharing octahedral tilt angles are 2°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a rectangular see-saw-like geometry to two equivalent Er(1) and two equivalent Er(2) atoms. In the second Te site, Te(2) is bonded in a rectangular see-saw-like geometry to two equivalent Er(1) and two equivalent Er(2) atoms. is represented by the CIF card [CIF]
data_Er2Te3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.486
_cell_length_b   7.486
_cell_length_c   13.669
_cell_angle_alpha   100.569
_cell_angle_beta   100.569
_cell_angle_gamma   109.288
_symmetry_Int_Tables_number   1
_cell_volume   685.620
_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
  Er  Er0  1  0.376  0.126  0.251  1.0
  Er  Er1  1  0.874  0.624  0.249  1.0
  Er  Er2  1  0.624  0.874  0.749  1.0
  Er  Er3  1  0.126  0.376  0.751  1.0
  Er  Er4  1  0.042  0.792  0.584  1.0
  Er  Er5  1  0.208  0.958  0.916  1.0
  Er  Er6  1  0.958  0.208  0.416  1.0
  Er  Er7  1  0.792  0.042  0.084  1.0
  Te  Te8  1  0.541  0.289  0.085  1.0
  Te  Te9  1  0.205  0.956  0.415  1.0
  Te  Te10  1  0.711  0.459  0.415  1.0
  Te  Te11  1  0.044  0.795  0.085  1.0
  Te  Te12  1  0.459  0.711  0.915  1.0
  Te  Te13  1  0.795  0.044  0.585  1.0
  Te  Te14  1  0.289  0.541  0.585  1.0
  Te  Te15  1  0.956  0.205  0.915  1.0
  Te  Te16  1  0.625  0.875  0.250  1.0
  Te  Te17  1  0.125  0.375  0.250  1.0
  Te  Te18  1  0.375  0.125  0.750  1.0
  Te  Te19  1  0.875  0.625  0.750  1.0
[/CIF]
.
The material structure described by Er2Te3 crystallizes in the orthorhombic Fddd space group. There are two inequivalent Er sites. In the first Er site, Er(1) is bonded to two equivalent Te(2) and four equivalent Te(1) atoms to form a mixture of corner and edge-sharing ErTe6 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the second Er site, Er(2) is bonded to two equivalent Te(2) and four equivalent Te(1) atoms to form a mixture of corner and edge-sharing ErTe6 octahedra. The corner-sharing octahedral tilt angles are 2°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a rectangular see-saw-like geometry to two equivalent Er(1) and two equivalent Er(2) atoms. In the second Te site, Te(2) is bonded in a rectangular see-saw-like geometry to two equivalent Er(1) and two equivalent Er(2) atoms. is represented by the CIF card [CIF]
data_Er2Te3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.486
_cell_length_b   7.486
_cell_length_c   13.669
_cell_angle_alpha   100.569
_cell_angle_beta   100.569
_cell_angle_gamma   109.288
_symmetry_Int_Tables_number   1
_cell_volume   685.620
_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
  Er  Er0  1  0.376  0.126  0.251  1.0
  Er  Er1  1  0.874  0.624  0.249  1.0
  Er  Er2  1  0.624  0.874  0.749  1.0
  Er  Er3  1  0.126  0.376  0.751  1.0
  Er  Er4  1  0.042  0.792  0.584  1.0
  Er  Er5  1  0.208  0.958  0.916  1.0
  Er  Er6  1  0.958  0.208  0.416  1.0
  Er  Er7  1  0.792  0.042  0.084  1.0
  Te  Te8  1  0.541  0.289  0.085  1.0
  Te  Te9  1  0.205  0.956  0.415  1.0
  Te  Te10  1  0.711  0.459  0.415  1.0
  Te  Te11  1  0.044  0.795  0.085  1.0
  Te  Te12  1  0.459  0.711  0.915  1.0
  Te  Te13  1  0.795  0.044  0.585  1.0
  Te  Te14  1  0.289  0.541  0.585  1.0
  Te  Te15  1  0.956  0.205  0.915  1.0
  Te  Te16  1  0.625  0.875  0.250  1.0
  Te  Te17  1  0.125  0.375  0.250  1.0
  Te  Te18  1  0.375  0.125  0.750  1.0
  Te  Te19  1  0.875  0.625  0.750  1.0
[/CIF]
.