The compound described by MgGd4Rh crystallizes in the cubic F-43m space group. Mg(1) is bonded to three equivalent Mg(1), three equivalent Gd(1), three equivalent Gd(2), and three equivalent Gd(3) atoms to form a mixture of corner and face-sharing MgGd9Mg3 cuboctahedra. There are three inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 14-coordinate geometry to two equivalent Mg(1), two equivalent Gd(3), four equivalent Gd(1), four equivalent Gd(2), and two equivalent Rh(1) atoms. In the second Gd site, Gd(2) is bonded in a bent 150 degrees geometry to two equivalent Mg(1), four equivalent Gd(1), and two equivalent Rh(1) atoms. In the third Gd site, Gd(3) is bonded in a 3-coordinate geometry to three equivalent Mg(1), three equivalent Gd(1), and three equivalent Rh(1) atoms. Rh(1) is bonded in a 6-coordinate geometry to three equivalent Gd(1), three equivalent Gd(2), and three equivalent Gd(3) atoms. is represented by the CIF card [CIF]
data_Gd4MgRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.806
_cell_length_b   9.806
_cell_length_c   9.806
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   666.760
_cell_formula_units_Z   4
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  0.063  0.437  0.437  1.0
  Gd  Gd1  1  0.063  0.437  0.063  1.0
  Gd  Gd2  1  0.063  0.063  0.437  1.0
  Gd  Gd3  1  0.437  0.063  0.063  1.0
  Gd  Gd4  1  0.437  0.063  0.437  1.0
  Gd  Gd5  1  0.437  0.437  0.063  1.0
  Gd  Gd6  1  0.189  0.811  0.811  1.0
  Gd  Gd7  1  0.189  0.811  0.189  1.0
  Gd  Gd8  1  0.189  0.189  0.811  1.0
  Gd  Gd9  1  0.811  0.189  0.189  1.0
  Gd  Gd10  1  0.811  0.189  0.811  1.0
  Gd  Gd11  1  0.811  0.811  0.189  1.0
  Gd  Gd12  1  0.037  0.654  0.654  1.0
  Gd  Gd13  1  0.654  0.037  0.654  1.0
  Gd  Gd14  1  0.654  0.654  0.037  1.0
  Gd  Gd15  1  0.654  0.654  0.654  1.0
  Mg  Mg16  1  0.737  0.421  0.421  1.0
  Mg  Mg17  1  0.421  0.737  0.421  1.0
  Mg  Mg18  1  0.421  0.421  0.737  1.0
  Mg  Mg19  1  0.421  0.421  0.421  1.0
  Rh  Rh20  1  0.425  0.858  0.858  1.0
  Rh  Rh21  1  0.858  0.425  0.858  1.0
  Rh  Rh22  1  0.858  0.858  0.425  1.0
  Rh  Rh23  1  0.858  0.858  0.858  1.0
[/CIF]
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The compound described by MgGd4Rh crystallizes in the cubic F-43m space group. Mg(1) is bonded to three equivalent Mg(1), three equivalent Gd(1), three equivalent Gd(2), and three equivalent Gd(3) atoms to form a mixture of corner and face-sharing MgGd9Mg3 cuboctahedra. There are three inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 14-coordinate geometry to two equivalent Mg(1), two equivalent Gd(3), four equivalent Gd(1), four equivalent Gd(2), and two equivalent Rh(1) atoms. In the second Gd site, Gd(2) is bonded in a bent 150 degrees geometry to two equivalent Mg(1), four equivalent Gd(1), and two equivalent Rh(1) atoms. In the third Gd site, Gd(3) is bonded in a 3-coordinate geometry to three equivalent Mg(1), three equivalent Gd(1), and three equivalent Rh(1) atoms. Rh(1) is bonded in a 6-coordinate geometry to three equivalent Gd(1), three equivalent Gd(2), and three equivalent Gd(3) atoms. is represented by the CIF card [CIF]
data_Gd4MgRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.806
_cell_length_b   9.806
_cell_length_c   9.806
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   666.760
_cell_formula_units_Z   4
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  0.063  0.437  0.437  1.0
  Gd  Gd1  1  0.063  0.437  0.063  1.0
  Gd  Gd2  1  0.063  0.063  0.437  1.0
  Gd  Gd3  1  0.437  0.063  0.063  1.0
  Gd  Gd4  1  0.437  0.063  0.437  1.0
  Gd  Gd5  1  0.437  0.437  0.063  1.0
  Gd  Gd6  1  0.189  0.811  0.811  1.0
  Gd  Gd7  1  0.189  0.811  0.189  1.0
  Gd  Gd8  1  0.189  0.189  0.811  1.0
  Gd  Gd9  1  0.811  0.189  0.189  1.0
  Gd  Gd10  1  0.811  0.189  0.811  1.0
  Gd  Gd11  1  0.811  0.811  0.189  1.0
  Gd  Gd12  1  0.037  0.654  0.654  1.0
  Gd  Gd13  1  0.654  0.037  0.654  1.0
  Gd  Gd14  1  0.654  0.654  0.037  1.0
  Gd  Gd15  1  0.654  0.654  0.654  1.0
  Mg  Mg16  1  0.737  0.421  0.421  1.0
  Mg  Mg17  1  0.421  0.737  0.421  1.0
  Mg  Mg18  1  0.421  0.421  0.737  1.0
  Mg  Mg19  1  0.421  0.421  0.421  1.0
  Rh  Rh20  1  0.425  0.858  0.858  1.0
  Rh  Rh21  1  0.858  0.425  0.858  1.0
  Rh  Rh22  1  0.858  0.858  0.425  1.0
  Rh  Rh23  1  0.858  0.858  0.858  1.0
[/CIF]
.