The material described by Mg(Hf) crystallizes in the hexagonal P6_3/mmc space group. Mg(1) is bonded to five equivalent Hf(1) atoms to form a mixture of corner and edge-sharing MgHf5 trigonal bipyramids. Hf(1) is bonded to five equivalent Mg(1) atoms to form a mixture of corner and edge-sharing HfMg5 trigonal bipyramids. is represented by the CIF file [CIF]
data_HfMg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.027
_cell_length_b   5.027
_cell_length_c   5.663
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   123.929
_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  0.333  0.667  0.750  1.0
  Hf  Hf1  1  0.667  0.333  0.250  1.0
  Mg  Mg2  1  0.333  0.667  0.250  1.0
  Mg  Mg3  1  0.667  0.333  0.750  1.0
[/CIF]
.
The material described by Mg(Hf) crystallizes in the hexagonal P6_3/mmc space group. Mg(1) is bonded to five equivalent Hf(1) atoms to form a mixture of corner and edge-sharing MgHf5 trigonal bipyramids. Hf(1) is bonded to five equivalent Mg(1) atoms to form a mixture of corner and edge-sharing HfMg5 trigonal bipyramids. is represented by the CIF file [CIF]
data_HfMg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.027
_cell_length_b   5.027
_cell_length_c   5.663
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   123.929
_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  0.333  0.667  0.750  1.0
  Hf  Hf1  1  0.667  0.333  0.250  1.0
  Mg  Mg2  1  0.333  0.667  0.250  1.0
  Mg  Mg3  1  0.667  0.333  0.750  1.0
[/CIF]
.