The structure described by Pm(Mg4Al3)4 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 one Mg(2), six equivalent Mg(1), and five equivalent Al(1) atoms. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to three equivalent Mg(1), one Pm(1), and six equivalent Al(1) atoms. Pm(1) is bonded in a 16-coordinate geometry to four equivalent Mg(2) and twelve equivalent Al(1) atoms. Al(1) is bonded in a 11-coordinate geometry to two equivalent Mg(2), five equivalent Mg(1), one Pm(1), and three equivalent Al(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pm(Mg4Al3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.154
_cell_length_b   9.154
_cell_length_c   9.154
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   590.406
_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
  Pm  Pm0  1  0.000  0.000  0.000  1.0
  Mg  Mg1  1  0.717  0.319  0.319  1.0
  Mg  Mg2  1  0.283  0.603  0.603  1.0
  Mg  Mg3  1  0.361  0.361  0.361  1.0
  Mg  Mg4  1  0.639  0.000  0.000  1.0
  Mg  Mg5  1  0.000  0.681  0.397  1.0
  Mg  Mg6  1  0.397  0.000  0.681  1.0
  Mg  Mg7  1  0.603  0.603  0.283  1.0
  Mg  Mg8  1  0.000  0.000  0.639  1.0
  Mg  Mg9  1  0.681  0.397  0.000  1.0
  Mg  Mg10  1  0.319  0.717  0.319  1.0
  Mg  Mg11  1  0.319  0.319  0.717  1.0
  Mg  Mg12  1  0.681  0.000  0.397  1.0
  Mg  Mg13  1  0.000  0.639  0.000  1.0
  Mg  Mg14  1  0.397  0.681  0.000  1.0
  Mg  Mg15  1  0.603  0.283  0.603  1.0
  Mg  Mg16  1  0.000  0.397  0.681  1.0
  Al  Al17  1  0.183  0.813  0.813  1.0
  Al  Al18  1  0.817  0.630  0.630  1.0
  Al  Al19  1  0.000  0.370  0.187  1.0
  Al  Al20  1  0.370  0.187  0.000  1.0
  Al  Al21  1  0.630  0.817  0.630  1.0
  Al  Al22  1  0.187  0.370  0.000  1.0
  Al  Al23  1  0.813  0.183  0.813  1.0
  Al  Al24  1  0.813  0.813  0.183  1.0
  Al  Al25  1  0.187  0.000  0.370  1.0
  Al  Al26  1  0.630  0.630  0.817  1.0
  Al  Al27  1  0.370  0.000  0.187  1.0
  Al  Al28  1  0.000  0.187  0.370  1.0
[/CIF]
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The structure described by Pm(Mg4Al3)4 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 one Mg(2), six equivalent Mg(1), and five equivalent Al(1) atoms. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to three equivalent Mg(1), one Pm(1), and six equivalent Al(1) atoms. Pm(1) is bonded in a 16-coordinate geometry to four equivalent Mg(2) and twelve equivalent Al(1) atoms. Al(1) is bonded in a 11-coordinate geometry to two equivalent Mg(2), five equivalent Mg(1), one Pm(1), and three equivalent Al(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pm(Mg4Al3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.154
_cell_length_b   9.154
_cell_length_c   9.154
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   590.406
_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
  Pm  Pm0  1  0.000  0.000  0.000  1.0
  Mg  Mg1  1  0.717  0.319  0.319  1.0
  Mg  Mg2  1  0.283  0.603  0.603  1.0
  Mg  Mg3  1  0.361  0.361  0.361  1.0
  Mg  Mg4  1  0.639  0.000  0.000  1.0
  Mg  Mg5  1  0.000  0.681  0.397  1.0
  Mg  Mg6  1  0.397  0.000  0.681  1.0
  Mg  Mg7  1  0.603  0.603  0.283  1.0
  Mg  Mg8  1  0.000  0.000  0.639  1.0
  Mg  Mg9  1  0.681  0.397  0.000  1.0
  Mg  Mg10  1  0.319  0.717  0.319  1.0
  Mg  Mg11  1  0.319  0.319  0.717  1.0
  Mg  Mg12  1  0.681  0.000  0.397  1.0
  Mg  Mg13  1  0.000  0.639  0.000  1.0
  Mg  Mg14  1  0.397  0.681  0.000  1.0
  Mg  Mg15  1  0.603  0.283  0.603  1.0
  Mg  Mg16  1  0.000  0.397  0.681  1.0
  Al  Al17  1  0.183  0.813  0.813  1.0
  Al  Al18  1  0.817  0.630  0.630  1.0
  Al  Al19  1  0.000  0.370  0.187  1.0
  Al  Al20  1  0.370  0.187  0.000  1.0
  Al  Al21  1  0.630  0.817  0.630  1.0
  Al  Al22  1  0.187  0.370  0.000  1.0
  Al  Al23  1  0.813  0.183  0.813  1.0
  Al  Al24  1  0.813  0.813  0.183  1.0
  Al  Al25  1  0.187  0.000  0.370  1.0
  Al  Al26  1  0.630  0.630  0.817  1.0
  Al  Al27  1  0.370  0.000  0.187  1.0
  Al  Al28  1  0.000  0.187  0.370  1.0
[/CIF]
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