The material described by Mg3Yb is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to eight Mg(1,1) and four equivalent Yb(1) atoms. In the second Mg site, Mg(1) is bonded in a 12-coordinate geometry to eight equivalent Mg(1) and four equivalent Yb(1) atoms. Yb(1) is bonded to twelve Mg(1,1) atoms to form a mixture of corner and face-sharing YbMg12 cuboctahedra. is represented by the CIF card [CIF]
data_YbMg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.759
_cell_length_b   6.759
_cell_length_c   5.291
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.001
_symmetry_Int_Tables_number   1
_cell_volume   209.319
_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
  Yb  Yb0  1  0.667  0.333  0.250  1.0
  Yb  Yb1  1  0.333  0.667  0.750  1.0
  Mg  Mg2  1  0.160  0.321  0.250  1.0
  Mg  Mg3  1  0.160  0.840  0.250  1.0
  Mg  Mg4  1  0.679  0.840  0.250  1.0
  Mg  Mg5  1  0.321  0.160  0.750  1.0
  Mg  Mg6  1  0.840  0.160  0.750  1.0
  Mg  Mg7  1  0.840  0.679  0.750  1.0
[/CIF]
.
The material described by Mg3Yb is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to eight Mg(1,1) and four equivalent Yb(1) atoms. In the second Mg site, Mg(1) is bonded in a 12-coordinate geometry to eight equivalent Mg(1) and four equivalent Yb(1) atoms. Yb(1) is bonded to twelve Mg(1,1) atoms to form a mixture of corner and face-sharing YbMg12 cuboctahedra. is represented by the CIF card [CIF]
data_YbMg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.759
_cell_length_b   6.759
_cell_length_c   5.291
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.001
_symmetry_Int_Tables_number   1
_cell_volume   209.319
_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
  Yb  Yb0  1  0.667  0.333  0.250  1.0
  Yb  Yb1  1  0.333  0.667  0.750  1.0
  Mg  Mg2  1  0.160  0.321  0.250  1.0
  Mg  Mg3  1  0.160  0.840  0.250  1.0
  Mg  Mg4  1  0.679  0.840  0.250  1.0
  Mg  Mg5  1  0.321  0.160  0.750  1.0
  Mg  Mg6  1  0.840  0.160  0.750  1.0
  Mg  Mg7  1  0.840  0.679  0.750  1.0
[/CIF]
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