The structure described by GdPtMg crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Pt(1) and two equivalent Pt(2) atoms to form a mixture of distorted corner and edge-sharing MgPt4 tetrahedra. In the second Mg site, Mg(2) is bonded to two equivalent Pt(1) and two equivalent Pt(2) atoms to form a mixture of distorted corner and edge-sharing MgPt4 tetrahedra. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 5-coordinate geometry to one Pt(1) and four equivalent Pt(2) atoms. In the second Gd site, Gd(2) is bonded in a 5-coordinate geometry to one Pt(1) and four equivalent Pt(2) atoms. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 9-coordinate geometry to two equivalent Mg(1), four equivalent Mg(2), one Gd(2), and two equivalent Gd(1) atoms. In the second Pt site, Pt(2) is bonded in a 9-coordinate geometry to one Mg(1), two equivalent Mg(2), two equivalent Gd(2), and four equivalent Gd(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_GdMgPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.388
_cell_length_b   7.390
_cell_length_c   4.099
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.008
_symmetry_Int_Tables_number   1
_cell_volume   193.818
_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  0.590  0.589  0.000  1.0
  Gd  Gd1  1  0.410  0.999  0.000  1.0
  Gd  Gd2  1  0.000  0.411  0.000  1.0
  Mg  Mg3  1  0.000  0.758  0.500  1.0
  Mg  Mg4  1  0.243  0.242  0.500  1.0
  Mg  Mg5  1  0.757  1.000  0.500  1.0
  Pt  Pt6  1  0.000  0.001  0.000  1.0
  Pt  Pt7  1  0.333  0.667  0.500  1.0
  Pt  Pt8  1  0.667  0.333  0.500  1.0
[/CIF]
.
The structure described by GdPtMg crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Pt(1) and two equivalent Pt(2) atoms to form a mixture of distorted corner and edge-sharing MgPt4 tetrahedra. In the second Mg site, Mg(2) is bonded to two equivalent Pt(1) and two equivalent Pt(2) atoms to form a mixture of distorted corner and edge-sharing MgPt4 tetrahedra. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 5-coordinate geometry to one Pt(1) and four equivalent Pt(2) atoms. In the second Gd site, Gd(2) is bonded in a 5-coordinate geometry to one Pt(1) and four equivalent Pt(2) atoms. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 9-coordinate geometry to two equivalent Mg(1), four equivalent Mg(2), one Gd(2), and two equivalent Gd(1) atoms. In the second Pt site, Pt(2) is bonded in a 9-coordinate geometry to one Mg(1), two equivalent Mg(2), two equivalent Gd(2), and four equivalent Gd(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_GdMgPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.388
_cell_length_b   7.390
_cell_length_c   4.099
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.008
_symmetry_Int_Tables_number   1
_cell_volume   193.818
_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  0.590  0.589  0.000  1.0
  Gd  Gd1  1  0.410  0.999  0.000  1.0
  Gd  Gd2  1  0.000  0.411  0.000  1.0
  Mg  Mg3  1  0.000  0.758  0.500  1.0
  Mg  Mg4  1  0.243  0.242  0.500  1.0
  Mg  Mg5  1  0.757  1.000  0.500  1.0
  Pt  Pt6  1  0.000  0.001  0.000  1.0
  Pt  Pt7  1  0.333  0.667  0.500  1.0
  Pt  Pt8  1  0.667  0.333  0.500  1.0
[/CIF]
.