The compound described by Gd is alpha Samarium structured and crystallizes in the trigonal R-3m space group. There are three inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to six equivalent Gd(1) and six equivalent Gd(2) atoms to form a mixture of corner, edge, and face-sharing GdGd12 cuboctahedra. In the second Gd site, Gd(2) is bonded to three equivalent Gd(1) and nine Gd(2,2) atoms to form a mixture of corner, edge, and face-sharing GdGd12 cuboctahedra. In the third Gd site, Gd(2) is bonded to three equivalent Gd(1) and nine Gd(2,2) atoms to form a mixture of corner, edge, and face-sharing GdGd12 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Gd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.148
_cell_length_b   9.148
_cell_length_c   9.148
_cell_angle_alpha   23.012
_cell_angle_beta   23.012
_cell_angle_gamma   23.012
_symmetry_Int_Tables_number   1
_cell_volume   102.696
_cell_formula_units_Z   3
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  0.000  0.000  1.0
  Gd  Gd1  1  0.223  0.223  0.223  1.0
  Gd  Gd2  1  0.777  0.777  0.777  1.0
[/CIF]
.
The compound described by Gd is alpha Samarium structured and crystallizes in the trigonal R-3m space group. There are three inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to six equivalent Gd(1) and six equivalent Gd(2) atoms to form a mixture of corner, edge, and face-sharing GdGd12 cuboctahedra. In the second Gd site, Gd(2) is bonded to three equivalent Gd(1) and nine Gd(2,2) atoms to form a mixture of corner, edge, and face-sharing GdGd12 cuboctahedra. In the third Gd site, Gd(2) is bonded to three equivalent Gd(1) and nine Gd(2,2) atoms to form a mixture of corner, edge, and face-sharing GdGd12 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Gd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.148
_cell_length_b   9.148
_cell_length_c   9.148
_cell_angle_alpha   23.012
_cell_angle_beta   23.012
_cell_angle_gamma   23.012
_symmetry_Int_Tables_number   1
_cell_volume   102.696
_cell_formula_units_Z   3
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  0.000  0.000  1.0
  Gd  Gd1  1  0.223  0.223  0.223  1.0
  Gd  Gd2  1  0.777  0.777  0.777  1.0
[/CIF]
.