The material structure described by Mg(Hf) is beta-prime cadmium gold structured and crystallizes in the orthorhombic Pmma space group. Mg(1) is bonded to four equivalent Mg(1) and eight equivalent Hf(1) atoms to form MgHf8Mg4 cuboctahedra that share corners with eight equivalent Hf(1)Hf4Mg8 cuboctahedra, corners with ten equivalent Mg(1)Hf8Mg4 cuboctahedra, edges with six equivalent Mg(1)Hf8Mg4 cuboctahedra, edges with twelve equivalent Hf(1)Hf4Mg8 cuboctahedra, faces with eight equivalent Hf(1)Hf4Mg8 cuboctahedra, and faces with twelve equivalent Mg(1)Hf8Mg4 cuboctahedra. Hf(1) is bonded to eight equivalent Mg(1) and four equivalent Hf(1) atoms to form HfHf4Mg8 cuboctahedra that share corners with eight equivalent Mg(1)Hf8Mg4 cuboctahedra, corners with ten equivalent Hf(1)Hf4Mg8 cuboctahedra, edges with six equivalent Hf(1)Hf4Mg8 cuboctahedra, edges with twelve equivalent Mg(1)Hf8Mg4 cuboctahedra, faces with eight equivalent Mg(1)Hf8Mg4 cuboctahedra, and faces with twelve equivalent Hf(1)Hf4Mg8 cuboctahedra. is represented by the CIF file [CIF]
data_HfMg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.160
_cell_length_b   5.097
_cell_length_c   5.372
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   86.539
_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
  Hf  Hf0  1  0.000  0.750  0.183  1.0
  Hf  Hf1  1  0.000  0.250  0.817  1.0
  Mg  Mg2  1  0.500  0.250  0.317  1.0
  Mg  Mg3  1  0.500  0.750  0.683  1.0
[/CIF]
.
The material structure described by Mg(Hf) is beta-prime cadmium gold structured and crystallizes in the orthorhombic Pmma space group. Mg(1) is bonded to four equivalent Mg(1) and eight equivalent Hf(1) atoms to form MgHf8Mg4 cuboctahedra that share corners with eight equivalent Hf(1)Hf4Mg8 cuboctahedra, corners with ten equivalent Mg(1)Hf8Mg4 cuboctahedra, edges with six equivalent Mg(1)Hf8Mg4 cuboctahedra, edges with twelve equivalent Hf(1)Hf4Mg8 cuboctahedra, faces with eight equivalent Hf(1)Hf4Mg8 cuboctahedra, and faces with twelve equivalent Mg(1)Hf8Mg4 cuboctahedra. Hf(1) is bonded to eight equivalent Mg(1) and four equivalent Hf(1) atoms to form HfHf4Mg8 cuboctahedra that share corners with eight equivalent Mg(1)Hf8Mg4 cuboctahedra, corners with ten equivalent Hf(1)Hf4Mg8 cuboctahedra, edges with six equivalent Hf(1)Hf4Mg8 cuboctahedra, edges with twelve equivalent Mg(1)Hf8Mg4 cuboctahedra, faces with eight equivalent Mg(1)Hf8Mg4 cuboctahedra, and faces with twelve equivalent Hf(1)Hf4Mg8 cuboctahedra. is represented by the CIF file [CIF]
data_HfMg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.160
_cell_length_b   5.097
_cell_length_c   5.372
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   86.539
_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
  Hf  Hf0  1  0.000  0.750  0.183  1.0
  Hf  Hf1  1  0.000  0.250  0.817  1.0
  Mg  Mg2  1  0.500  0.250  0.317  1.0
  Mg  Mg3  1  0.500  0.750  0.683  1.0
[/CIF]
.