The compound described by Mg24Tb5 is alpha-derived structured and crystallizes in the cubic I-43m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 13-coordinate geometry to five equivalent Mg(2), six equivalent Mg(1), and two equivalent Tb(2) atoms. In the second Mg site, Mg(2) is bonded in a 12-coordinate geometry to three equivalent Mg(2), five equivalent Mg(1), one Tb(1), and three equivalent Tb(2) atoms. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 16-coordinate geometry to twelve equivalent Mg(2) and four equivalent Tb(2) atoms. In the second Tb site, Tb(2) is bonded in a 16-coordinate geometry to six equivalent Mg(1), nine equivalent Mg(2), and one Tb(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb5Mg24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.730
_cell_length_b   9.730
_cell_length_c   9.730
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   709.049
_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
  Tb  Tb0  1  0.000  0.000  0.000  1.0
  Tb  Tb1  1  0.623  0.000  0.000  1.0
  Tb  Tb2  1  0.000  0.623  0.000  1.0
  Tb  Tb3  1  0.000  0.000  0.623  1.0
  Tb  Tb4  1  0.377  0.377  0.377  1.0
  Mg  Mg5  1  0.387  0.673  0.000  1.0
  Mg  Mg6  1  0.714  0.327  0.327  1.0
  Mg  Mg7  1  0.387  0.000  0.673  1.0
  Mg  Mg8  1  0.673  0.387  0.000  1.0
  Mg  Mg9  1  0.000  0.387  0.673  1.0
  Mg  Mg10  1  0.327  0.714  0.327  1.0
  Mg  Mg11  1  0.327  0.327  0.714  1.0
  Mg  Mg12  1  0.000  0.673  0.387  1.0
  Mg  Mg13  1  0.673  0.000  0.387  1.0
  Mg  Mg14  1  0.613  0.613  0.286  1.0
  Mg  Mg15  1  0.286  0.613  0.613  1.0
  Mg  Mg16  1  0.613  0.286  0.613  1.0
  Mg  Mg17  1  0.369  0.190  0.000  1.0
  Mg  Mg18  1  0.179  0.810  0.810  1.0
  Mg  Mg19  1  0.369  0.000  0.190  1.0
  Mg  Mg20  1  0.190  0.369  0.000  1.0
  Mg  Mg21  1  0.000  0.369  0.190  1.0
  Mg  Mg22  1  0.810  0.179  0.810  1.0
  Mg  Mg23  1  0.810  0.810  0.179  1.0
  Mg  Mg24  1  0.000  0.190  0.369  1.0
  Mg  Mg25  1  0.190  0.000  0.369  1.0
  Mg  Mg26  1  0.631  0.631  0.821  1.0
  Mg  Mg27  1  0.821  0.631  0.631  1.0
  Mg  Mg28  1  0.631  0.821  0.631  1.0
[/CIF]
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The compound described by Mg24Tb5 is alpha-derived structured and crystallizes in the cubic I-43m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 13-coordinate geometry to five equivalent Mg(2), six equivalent Mg(1), and two equivalent Tb(2) atoms. In the second Mg site, Mg(2) is bonded in a 12-coordinate geometry to three equivalent Mg(2), five equivalent Mg(1), one Tb(1), and three equivalent Tb(2) atoms. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 16-coordinate geometry to twelve equivalent Mg(2) and four equivalent Tb(2) atoms. In the second Tb site, Tb(2) is bonded in a 16-coordinate geometry to six equivalent Mg(1), nine equivalent Mg(2), and one Tb(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb5Mg24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.730
_cell_length_b   9.730
_cell_length_c   9.730
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   709.049
_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
  Tb  Tb0  1  0.000  0.000  0.000  1.0
  Tb  Tb1  1  0.623  0.000  0.000  1.0
  Tb  Tb2  1  0.000  0.623  0.000  1.0
  Tb  Tb3  1  0.000  0.000  0.623  1.0
  Tb  Tb4  1  0.377  0.377  0.377  1.0
  Mg  Mg5  1  0.387  0.673  0.000  1.0
  Mg  Mg6  1  0.714  0.327  0.327  1.0
  Mg  Mg7  1  0.387  0.000  0.673  1.0
  Mg  Mg8  1  0.673  0.387  0.000  1.0
  Mg  Mg9  1  0.000  0.387  0.673  1.0
  Mg  Mg10  1  0.327  0.714  0.327  1.0
  Mg  Mg11  1  0.327  0.327  0.714  1.0
  Mg  Mg12  1  0.000  0.673  0.387  1.0
  Mg  Mg13  1  0.673  0.000  0.387  1.0
  Mg  Mg14  1  0.613  0.613  0.286  1.0
  Mg  Mg15  1  0.286  0.613  0.613  1.0
  Mg  Mg16  1  0.613  0.286  0.613  1.0
  Mg  Mg17  1  0.369  0.190  0.000  1.0
  Mg  Mg18  1  0.179  0.810  0.810  1.0
  Mg  Mg19  1  0.369  0.000  0.190  1.0
  Mg  Mg20  1  0.190  0.369  0.000  1.0
  Mg  Mg21  1  0.000  0.369  0.190  1.0
  Mg  Mg22  1  0.810  0.179  0.810  1.0
  Mg  Mg23  1  0.810  0.810  0.179  1.0
  Mg  Mg24  1  0.000  0.190  0.369  1.0
  Mg  Mg25  1  0.190  0.000  0.369  1.0
  Mg  Mg26  1  0.631  0.631  0.821  1.0
  Mg  Mg27  1  0.821  0.631  0.631  1.0
  Mg  Mg28  1  0.631  0.821  0.631  1.0
[/CIF]
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