The crystal structure described by GdCuAs2 is Parent of FeAs superconductors-derived structured and crystallizes in the tetragonal P4/nmm space group. Gd(1) is bonded in a 8-coordinate geometry to four equivalent As(1) and four equivalent As(2) atoms. Cu(1) is bonded to four equivalent As(2) atoms to form a mixture of distorted corner and edge-sharing CuAs4 tetrahedra. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 8-coordinate geometry to four equivalent Gd(1) and four equivalent As(1) atoms. In the second As site, As(2) is bonded in a 8-coordinate geometry to four equivalent Gd(1) and four equivalent Cu(1) atoms. is represented by the CIF file [CIF]
data_GdCuAs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.902
_cell_length_b   3.902
_cell_length_c   10.013
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   152.480
_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
  Gd  Gd0  1  0.000  0.500  0.762  1.0
  Gd  Gd1  1  0.500  0.000  0.238  1.0
  Cu  Cu2  1  0.000  0.000  0.500  1.0
  Cu  Cu3  1  0.500  0.500  0.500  1.0
  As  As4  1  0.500  0.500  0.000  1.0
  As  As5  1  0.000  0.000  0.000  1.0
  As  As6  1  0.500  0.000  0.655  1.0
  As  As7  1  0.000  0.500  0.345  1.0
[/CIF]
.
The crystal structure described by GdCuAs2 is Parent of FeAs superconductors-derived structured and crystallizes in the tetragonal P4/nmm space group. Gd(1) is bonded in a 8-coordinate geometry to four equivalent As(1) and four equivalent As(2) atoms. Cu(1) is bonded to four equivalent As(2) atoms to form a mixture of distorted corner and edge-sharing CuAs4 tetrahedra. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 8-coordinate geometry to four equivalent Gd(1) and four equivalent As(1) atoms. In the second As site, As(2) is bonded in a 8-coordinate geometry to four equivalent Gd(1) and four equivalent Cu(1) atoms. is represented by the CIF file [CIF]
data_GdCuAs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.902
_cell_length_b   3.902
_cell_length_c   10.013
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   152.480
_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
  Gd  Gd0  1  0.000  0.500  0.762  1.0
  Gd  Gd1  1  0.500  0.000  0.238  1.0
  Cu  Cu2  1  0.000  0.000  0.500  1.0
  Cu  Cu3  1  0.500  0.500  0.500  1.0
  As  As4  1  0.500  0.500  0.000  1.0
  As  As5  1  0.000  0.000  0.000  1.0
  As  As6  1  0.500  0.000  0.655  1.0
  As  As7  1  0.000  0.500  0.345  1.0
[/CIF]
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