The compound described by GdIr3 crystallizes in the monoclinic C2/m space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 12-coordinate geometry to three equivalent Ir(2), three equivalent Ir(4), and six equivalent Ir(1) atoms. In the second Gd site, Gd(2) is bonded in a distorted hexagonal planar geometry to four equivalent Ir(2), six equivalent Ir(3), and eight equivalent Ir(1) atoms. There are four inequivalent Ir sites. In the first Ir site, Ir(1) is bonded to two equivalent Gd(2), three equivalent Gd(1), one Ir(4), two equivalent Ir(1), two equivalent Ir(2), and two equivalent Ir(3) atoms to form distorted IrGd5Ir7 cuboctahedra that share corners with two equivalent Ir(4)Gd6Ir6 cuboctahedra, corners with four equivalent Ir(2)Gd5Ir7 cuboctahedra, corners with eleven equivalent Ir(1)Gd5Ir7 cuboctahedra, edges with two equivalent Ir(2)Gd5Ir7 cuboctahedra, edges with six equivalent Ir(1)Gd5Ir7 cuboctahedra, faces with three equivalent Ir(4)Gd6Ir6 cuboctahedra, faces with five equivalent Ir(2)Gd5Ir7 cuboctahedra, and faces with six equivalent Ir(1)Gd5Ir7 cuboctahedra. In the second Ir site, Ir(2) is bonded to two equivalent Gd(2), three equivalent Gd(1), one Ir(4), two equivalent Ir(3), and four equivalent Ir(1) atoms to form distorted IrGd5Ir7 cuboctahedra that share corners with two equivalent Ir(4)Gd6Ir6 cuboctahedra, corners with seven equivalent Ir(2)Gd5Ir7 cuboctahedra, corners with eight equivalent Ir(1)Gd5Ir7 cuboctahedra, edges with four equivalent Ir(1)Gd5Ir7 cuboctahedra, edges with four equivalent Ir(2)Gd5Ir7 cuboctahedra,  a faceface with one Ir(2)Gd5Ir7 cuboctahedra, faces with three equivalent Ir(4)Gd6Ir6 cuboctahedra, and faces with ten equivalent Ir(1)Gd5Ir7 cuboctahedra. In the third Ir site, Ir(3) is bonded in a 9-coordinate geometry to three equivalent Gd(2), two equivalent Ir(2), and four equivalent Ir(1) atoms. In the fourth Ir site, Ir(4) is bonded to six equivalent Gd(1), two equivalent Ir(2), and four equivalent Ir(1) atoms to form IrGd6Ir6 cuboctahedra that share corners with four equivalent Ir(2)Gd5Ir7 cuboctahedra, corners with eight equivalent Ir(1)Gd5Ir7 cuboctahedra, edges with six equivalent Ir(4)Gd6Ir6 cuboctahedra, faces with six equivalent Ir(2)Gd5Ir7 cuboctahedra, and faces with twelve equivalent Ir(1)Gd5Ir7 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_GdIr3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.340
_cell_length_b   5.341
_cell_length_c   9.301
_cell_angle_alpha   73.455
_cell_angle_beta   73.318
_cell_angle_gamma   60.005
_symmetry_Int_Tables_number   1
_cell_volume   216.862
_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  0.860  0.361  0.918  1.0
  Gd  Gd1  1  0.140  0.639  0.082  1.0
  Gd  Gd2  1  0.000  0.500  0.500  1.0
  Ir  Ir3  1  0.916  0.919  0.745  1.0
  Ir  Ir4  1  0.419  0.418  0.745  1.0
  Ir  Ir5  1  0.421  0.919  0.745  1.0
  Ir  Ir6  1  0.084  0.081  0.255  1.0
  Ir  Ir7  1  0.581  0.582  0.255  1.0
  Ir  Ir8  1  0.579  0.081  0.255  1.0
  Ir  Ir9  1  0.668  0.167  0.497  1.0
  Ir  Ir10  1  0.332  0.833  0.503  1.0
  Ir  Ir11  1  0.500  0.000  0.000  1.0
[/CIF]
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The compound described by GdIr3 crystallizes in the monoclinic C2/m space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 12-coordinate geometry to three equivalent Ir(2), three equivalent Ir(4), and six equivalent Ir(1) atoms. In the second Gd site, Gd(2) is bonded in a distorted hexagonal planar geometry to four equivalent Ir(2), six equivalent Ir(3), and eight equivalent Ir(1) atoms. There are four inequivalent Ir sites. In the first Ir site, Ir(1) is bonded to two equivalent Gd(2), three equivalent Gd(1), one Ir(4), two equivalent Ir(1), two equivalent Ir(2), and two equivalent Ir(3) atoms to form distorted IrGd5Ir7 cuboctahedra that share corners with two equivalent Ir(4)Gd6Ir6 cuboctahedra, corners with four equivalent Ir(2)Gd5Ir7 cuboctahedra, corners with eleven equivalent Ir(1)Gd5Ir7 cuboctahedra, edges with two equivalent Ir(2)Gd5Ir7 cuboctahedra, edges with six equivalent Ir(1)Gd5Ir7 cuboctahedra, faces with three equivalent Ir(4)Gd6Ir6 cuboctahedra, faces with five equivalent Ir(2)Gd5Ir7 cuboctahedra, and faces with six equivalent Ir(1)Gd5Ir7 cuboctahedra. In the second Ir site, Ir(2) is bonded to two equivalent Gd(2), three equivalent Gd(1), one Ir(4), two equivalent Ir(3), and four equivalent Ir(1) atoms to form distorted IrGd5Ir7 cuboctahedra that share corners with two equivalent Ir(4)Gd6Ir6 cuboctahedra, corners with seven equivalent Ir(2)Gd5Ir7 cuboctahedra, corners with eight equivalent Ir(1)Gd5Ir7 cuboctahedra, edges with four equivalent Ir(1)Gd5Ir7 cuboctahedra, edges with four equivalent Ir(2)Gd5Ir7 cuboctahedra,  a faceface with one Ir(2)Gd5Ir7 cuboctahedra, faces with three equivalent Ir(4)Gd6Ir6 cuboctahedra, and faces with ten equivalent Ir(1)Gd5Ir7 cuboctahedra. In the third Ir site, Ir(3) is bonded in a 9-coordinate geometry to three equivalent Gd(2), two equivalent Ir(2), and four equivalent Ir(1) atoms. In the fourth Ir site, Ir(4) is bonded to six equivalent Gd(1), two equivalent Ir(2), and four equivalent Ir(1) atoms to form IrGd6Ir6 cuboctahedra that share corners with four equivalent Ir(2)Gd5Ir7 cuboctahedra, corners with eight equivalent Ir(1)Gd5Ir7 cuboctahedra, edges with six equivalent Ir(4)Gd6Ir6 cuboctahedra, faces with six equivalent Ir(2)Gd5Ir7 cuboctahedra, and faces with twelve equivalent Ir(1)Gd5Ir7 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_GdIr3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.340
_cell_length_b   5.341
_cell_length_c   9.301
_cell_angle_alpha   73.455
_cell_angle_beta   73.318
_cell_angle_gamma   60.005
_symmetry_Int_Tables_number   1
_cell_volume   216.862
_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  0.860  0.361  0.918  1.0
  Gd  Gd1  1  0.140  0.639  0.082  1.0
  Gd  Gd2  1  0.000  0.500  0.500  1.0
  Ir  Ir3  1  0.916  0.919  0.745  1.0
  Ir  Ir4  1  0.419  0.418  0.745  1.0
  Ir  Ir5  1  0.421  0.919  0.745  1.0
  Ir  Ir6  1  0.084  0.081  0.255  1.0
  Ir  Ir7  1  0.581  0.582  0.255  1.0
  Ir  Ir8  1  0.579  0.081  0.255  1.0
  Ir  Ir9  1  0.668  0.167  0.497  1.0
  Ir  Ir10  1  0.332  0.833  0.503  1.0
  Ir  Ir11  1  0.500  0.000  0.000  1.0
[/CIF]
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