The crystal structure described by Mg(Hf) is Copper-derived structured and crystallizes in the trigonal R-3m space group. Mg(1) is bonded to six equivalent Mg(1) and six equivalent Hf(1) atoms to form MgHf6Mg6 cuboctahedra that share corners with twelve equivalent Mg(1)Hf6Mg6 cuboctahedra, edges with twelve equivalent Mg(1)Hf6Mg6 cuboctahedra, edges with twelve equivalent Hf(1)Hf6Mg6 cuboctahedra, faces with six equivalent Mg(1)Hf6Mg6 cuboctahedra, and faces with twelve equivalent Hf(1)Hf6Mg6 cuboctahedra. Hf(1) is bonded to six equivalent Mg(1) and six equivalent Hf(1) atoms to form HfHf6Mg6 cuboctahedra that share corners with twelve equivalent Hf(1)Hf6Mg6 cuboctahedra, edges with twelve equivalent Mg(1)Hf6Mg6 cuboctahedra, edges with twelve equivalent Hf(1)Hf6Mg6 cuboctahedra, faces with six equivalent Hf(1)Hf6Mg6 cuboctahedra, and faces with twelve equivalent Mg(1)Hf6Mg6 cuboctahedra. is represented by the CIF card [CIF]
data_HfMg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.755
_cell_length_b   5.755
_cell_length_c   5.755
_cell_angle_alpha   30.702
_cell_angle_beta   30.702
_cell_angle_gamma   30.702
_symmetry_Int_Tables_number   1
_cell_volume   44.048
_cell_formula_units_Z   1
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  0.000  0.000  1.0
  Mg  Mg1  1  0.500  0.500  0.500  1.0
[/CIF]
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The crystal structure described by Mg(Hf) is Copper-derived structured and crystallizes in the trigonal R-3m space group. Mg(1) is bonded to six equivalent Mg(1) and six equivalent Hf(1) atoms to form MgHf6Mg6 cuboctahedra that share corners with twelve equivalent Mg(1)Hf6Mg6 cuboctahedra, edges with twelve equivalent Mg(1)Hf6Mg6 cuboctahedra, edges with twelve equivalent Hf(1)Hf6Mg6 cuboctahedra, faces with six equivalent Mg(1)Hf6Mg6 cuboctahedra, and faces with twelve equivalent Hf(1)Hf6Mg6 cuboctahedra. Hf(1) is bonded to six equivalent Mg(1) and six equivalent Hf(1) atoms to form HfHf6Mg6 cuboctahedra that share corners with twelve equivalent Hf(1)Hf6Mg6 cuboctahedra, edges with twelve equivalent Mg(1)Hf6Mg6 cuboctahedra, edges with twelve equivalent Hf(1)Hf6Mg6 cuboctahedra, faces with six equivalent Hf(1)Hf6Mg6 cuboctahedra, and faces with twelve equivalent Mg(1)Hf6Mg6 cuboctahedra. is represented by the CIF card [CIF]
data_HfMg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.755
_cell_length_b   5.755
_cell_length_c   5.755
_cell_angle_alpha   30.702
_cell_angle_beta   30.702
_cell_angle_gamma   30.702
_symmetry_Int_Tables_number   1
_cell_volume   44.048
_cell_formula_units_Z   1
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  0.000  0.000  1.0
  Mg  Mg1  1  0.500  0.500  0.500  1.0
[/CIF]
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