The material structure described by ErCuTl crystallizes in the monoclinic C2/m space group. Er(1) is bonded in a 9-coordinate geometry to six equivalent Cu(1) and three equivalent Tl(1) atoms. Cu(1) is bonded in a 9-coordinate geometry to six equivalent Er(1) and three equivalent Cu(1) atoms. Tl(1) is bonded to three equivalent Er(1) and three equivalent Tl(1) atoms to form edge-sharing TlEr3Tl3 octahedra. is represented by the CIF card [CIF]
data_ErTlCu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.210
_cell_length_b   4.210
_cell_length_c   9.237
_cell_angle_alpha   89.236
_cell_angle_beta   90.764
_cell_angle_gamma   118.588
_symmetry_Int_Tables_number   1
_cell_volume   143.741
_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  0.006  0.994  0.676  1.0
  Er  Er1  1  0.994  0.006  0.324  1.0
  Tl  Tl2  1  0.331  0.669  0.098  1.0
  Tl  Tl3  1  0.669  0.331  0.902  1.0
  Cu  Cu4  1  0.669  0.331  0.505  1.0
  Cu  Cu5  1  0.331  0.669  0.495  1.0
[/CIF]
.
The material structure described by ErCuTl crystallizes in the monoclinic C2/m space group. Er(1) is bonded in a 9-coordinate geometry to six equivalent Cu(1) and three equivalent Tl(1) atoms. Cu(1) is bonded in a 9-coordinate geometry to six equivalent Er(1) and three equivalent Cu(1) atoms. Tl(1) is bonded to three equivalent Er(1) and three equivalent Tl(1) atoms to form edge-sharing TlEr3Tl3 octahedra. is represented by the CIF card [CIF]
data_ErTlCu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.210
_cell_length_b   4.210
_cell_length_c   9.237
_cell_angle_alpha   89.236
_cell_angle_beta   90.764
_cell_angle_gamma   118.588
_symmetry_Int_Tables_number   1
_cell_volume   143.741
_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  0.006  0.994  0.676  1.0
  Er  Er1  1  0.994  0.006  0.324  1.0
  Tl  Tl2  1  0.331  0.669  0.098  1.0
  Tl  Tl3  1  0.669  0.331  0.902  1.0
  Cu  Cu4  1  0.669  0.331  0.505  1.0
  Cu  Cu5  1  0.331  0.669  0.495  1.0
[/CIF]
.