The material described by ErTe2 crystallizes in the tetragonal P4/nmm space group. Er(1) is bonded in a 9-coordinate geometry to four equivalent Te(2) and five equivalent Te(1) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to five equivalent Er(1) atoms to form a mixture of distorted corner and edge-sharing TeEr5 trigonal bipyramids. In the second Te site, Te(2) is bonded in a 8-coordinate geometry to four equivalent Er(1) and four equivalent Te(2) atoms. is represented by the CIF card [CIF]
data_ErTe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.425
_cell_length_b   4.425
_cell_length_c   8.847
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   173.238
_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
  Er  Er0  1  0.000  0.500  0.729  1.0
  Er  Er1  1  0.500  0.000  0.271  1.0
  Te  Te2  1  0.000  0.500  0.373  1.0
  Te  Te3  1  0.500  0.000  0.627  1.0
  Te  Te4  1  0.000  0.000  0.000  1.0
  Te  Te5  1  0.500  0.500  0.000  1.0
[/CIF]
.
The material described by ErTe2 crystallizes in the tetragonal P4/nmm space group. Er(1) is bonded in a 9-coordinate geometry to four equivalent Te(2) and five equivalent Te(1) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to five equivalent Er(1) atoms to form a mixture of distorted corner and edge-sharing TeEr5 trigonal bipyramids. In the second Te site, Te(2) is bonded in a 8-coordinate geometry to four equivalent Er(1) and four equivalent Te(2) atoms. is represented by the CIF card [CIF]
data_ErTe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.425
_cell_length_b   4.425
_cell_length_c   8.847
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   173.238
_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
  Er  Er0  1  0.000  0.500  0.729  1.0
  Er  Er1  1  0.500  0.000  0.271  1.0
  Te  Te2  1  0.000  0.500  0.373  1.0
  Te  Te3  1  0.500  0.000  0.627  1.0
  Te  Te4  1  0.000  0.000  0.000  1.0
  Te  Te5  1  0.500  0.500  0.000  1.0
[/CIF]
.