The structure described by Mg24Er5 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 12-coordinate geometry to three equivalent Mg(1), five equivalent Mg(2), one Er(2), and three equivalent Er(1) atoms. In the second Mg site, Mg(2) is bonded in a 13-coordinate geometry to five equivalent Mg(1), six equivalent Mg(2), and two equivalent Er(1) atoms. There are two inequivalent Er sites. In the first Er site, Er(1) is bonded in a 16-coordinate geometry to six equivalent Mg(2), nine equivalent Mg(1), and one Er(2) atom. In the second Er site, Er(2) is bonded in a 16-coordinate geometry to twelve equivalent Mg(1) and four equivalent Er(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Er5Mg24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.672
_cell_length_b   9.672
_cell_length_c   9.672
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   696.524
_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
  Er  Er0  1  0.000  0.373  0.000  1.0
  Er  Er1  1  0.373  0.000  0.000  1.0
  Er  Er2  1  0.000  0.000  0.373  1.0
  Er  Er3  1  0.627  0.627  0.627  1.0
  Er  Er4  1  0.000  0.000  0.000  1.0
  Mg  Mg5  1  0.190  0.821  0.190  1.0
  Mg  Mg6  1  0.179  0.370  0.370  1.0
  Mg  Mg7  1  0.370  0.370  0.179  1.0
  Mg  Mg8  1  0.630  0.810  0.000  1.0
  Mg  Mg9  1  0.000  0.810  0.630  1.0
  Mg  Mg10  1  0.389  0.713  0.389  1.0
  Mg  Mg11  1  0.323  0.000  0.611  1.0
  Mg  Mg12  1  0.611  0.000  0.323  1.0
  Mg  Mg13  1  0.323  0.611  0.000  1.0
  Mg  Mg14  1  0.677  0.677  0.287  1.0
  Mg  Mg15  1  0.287  0.677  0.677  1.0
  Mg  Mg16  1  0.000  0.611  0.323  1.0
  Mg  Mg17  1  0.000  0.323  0.611  1.0
  Mg  Mg18  1  0.611  0.323  0.000  1.0
  Mg  Mg19  1  0.389  0.389  0.713  1.0
  Mg  Mg20  1  0.713  0.389  0.389  1.0
  Mg  Mg21  1  0.677  0.287  0.677  1.0
  Mg  Mg22  1  0.370  0.179  0.370  1.0
  Mg  Mg23  1  0.810  0.000  0.630  1.0
  Mg  Mg24  1  0.630  0.000  0.810  1.0
  Mg  Mg25  1  0.810  0.630  0.000  1.0
  Mg  Mg26  1  0.190  0.190  0.821  1.0
  Mg  Mg27  1  0.821  0.190  0.190  1.0
  Mg  Mg28  1  0.000  0.630  0.810  1.0
[/CIF]
.
The structure described by Mg24Er5 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 12-coordinate geometry to three equivalent Mg(1), five equivalent Mg(2), one Er(2), and three equivalent Er(1) atoms. In the second Mg site, Mg(2) is bonded in a 13-coordinate geometry to five equivalent Mg(1), six equivalent Mg(2), and two equivalent Er(1) atoms. There are two inequivalent Er sites. In the first Er site, Er(1) is bonded in a 16-coordinate geometry to six equivalent Mg(2), nine equivalent Mg(1), and one Er(2) atom. In the second Er site, Er(2) is bonded in a 16-coordinate geometry to twelve equivalent Mg(1) and four equivalent Er(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Er5Mg24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.672
_cell_length_b   9.672
_cell_length_c   9.672
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   696.524
_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
  Er  Er0  1  0.000  0.373  0.000  1.0
  Er  Er1  1  0.373  0.000  0.000  1.0
  Er  Er2  1  0.000  0.000  0.373  1.0
  Er  Er3  1  0.627  0.627  0.627  1.0
  Er  Er4  1  0.000  0.000  0.000  1.0
  Mg  Mg5  1  0.190  0.821  0.190  1.0
  Mg  Mg6  1  0.179  0.370  0.370  1.0
  Mg  Mg7  1  0.370  0.370  0.179  1.0
  Mg  Mg8  1  0.630  0.810  0.000  1.0
  Mg  Mg9  1  0.000  0.810  0.630  1.0
  Mg  Mg10  1  0.389  0.713  0.389  1.0
  Mg  Mg11  1  0.323  0.000  0.611  1.0
  Mg  Mg12  1  0.611  0.000  0.323  1.0
  Mg  Mg13  1  0.323  0.611  0.000  1.0
  Mg  Mg14  1  0.677  0.677  0.287  1.0
  Mg  Mg15  1  0.287  0.677  0.677  1.0
  Mg  Mg16  1  0.000  0.611  0.323  1.0
  Mg  Mg17  1  0.000  0.323  0.611  1.0
  Mg  Mg18  1  0.611  0.323  0.000  1.0
  Mg  Mg19  1  0.389  0.389  0.713  1.0
  Mg  Mg20  1  0.713  0.389  0.389  1.0
  Mg  Mg21  1  0.677  0.287  0.677  1.0
  Mg  Mg22  1  0.370  0.179  0.370  1.0
  Mg  Mg23  1  0.810  0.000  0.630  1.0
  Mg  Mg24  1  0.630  0.000  0.810  1.0
  Mg  Mg25  1  0.810  0.630  0.000  1.0
  Mg  Mg26  1  0.190  0.190  0.821  1.0
  Mg  Mg27  1  0.821  0.190  0.190  1.0
  Mg  Mg28  1  0.000  0.630  0.810  1.0
[/CIF]
.